cisco-sa-iosxe-ikev1-dos-xhk3hzfc
Vulnerability from csaf_cisco
Published
2025-05-07 16:00
Modified
2025-05-07 16:00
Summary
Cisco IOS XE Software Internet Key Exchange Version 1 Denial of Service Vulnerability
Notes
Summary
A vulnerability in the Internet Key Exchange version 1 (IKEv1) implementation of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The attacker must have valid IKEv1 VPN credentials to exploit this vulnerability.
This vulnerability is due to improper validation of IKEv1 phase 2 parameters before the IPsec security association creation request is handed off to the hardware cryptographic accelerator of an affected device. An attacker could exploit this vulnerability by sending crafted IKEv1 messages to the affected device. A successful exploit could allow the attacker to cause the device to reload.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
This advisory is part of the May 2025 release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: May 2025 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75279"].
Vulnerable Products
This vulnerability affects the following Cisco products if they are running a vulnerable release of Cisco IOS XE Software and have IKEv1 VPN enabled:
1000 Series Integrated Services Routers (ISRs)
4000 Series ISRs
Catalyst 8200 Series Edge Platforms
Catalyst 8300 Series Edge Platforms
Catalyst 8500 Series Edge Platforms
Catalyst 8500L Series Edge Platforms
The following features are affected by this vulnerability if they are configured to use IKEv1:
Dynamic Multipoint VPN (DMVPN)
Remote Access IPsec VPN (RAVPN)
Site-to-Site VPN (S2S VPN)
Note: Cisco Group Encrypted Transport VPN (GET VPN) and SSL VPN do not use IKEv1 for IPsec session establishment and are not affected by this vulnerability.
For information about which Cisco software releases are vulnerable, see the Fixed Software ["#fs"] section of this advisory.
Determine the Device Configuration
1. Determine Whether IKE (v1 or v2) Is Enabled
To determine whether IKE processing is enabled, use the show ip socket | include 500 or show udp | include 500 EXEC command on the device CLI. If UDP port 500 or UDP port 4500 is open on a device, the device is processing IKE packets.
Note: UDP ports 500 or 4500 or both will be open regardless of whether IKEv1 or IKEv2 is enabled, as both use the same port and protocol numbers.
The following example shows the output of the show udp | include 500 command on a device that is processing IKE packets on UDP ports 500 and 4500 using either IPv4 or IPv6:
Router#show udp | include 500
17 --listen-- 192.168.1.10 500 0 0 2001011 0
17(v6) --listen-- --any-- 500 0 0 2020011 0
17 --listen-- 192.168.1.10 4500 0 0 2001011 0
17(v6) --listen-- --any-- 4500 0 0 2020011 0
If this command returns empty output, the device is not affected by this vulnerability. Otherwise, proceed to step 2.
2. Determine Whether IKEv1 Is Used
To determine whether IKEv1 is being actively used by the device, use the show crypto map EXEC command on the device CLI. A crypto map uses IKEv1 if it does not have an IKEv2 Profile associated. A crypto map is active if there is at least one interface using that crypto map.
The following example shows the output of the show crypto map command on a device that has crypto map CMAP1 configured to use IKEv1 (because no IKEv2 Profile is listed) and enabled on interface GigabitEthernet1:
Router1#show crypto map
Crypto Map IPv4 "CMAP1" 10 ipsec-isakmp
Peer = 192.168.1.100
Access-List SS dynamic: False
Extended IP access list 120
access-list 110 permit ip 192.168.11.0 0.0.0.255 192.168.12.0 0.0.0.255
Current peer: 192.168.1.100
Security association lifetime: 4608000 kilobytes/3600 seconds
Dualstack (Y/N): N
Responder-Only (Y/N): N
PFS (Y/N): N
Mixed-mode : Disabled
Transform sets={
AESSET: { esp-256-aes esp-sha256-hmac } ,
}
Interfaces using crypto map CMAP1:
GigabitEthernet1
Router1#
This device is affected by this vulnerability.
The following example shows the output of the show crypto map command on a device that has crypto map CMAP2 configured to use IKEv2 (because an IKEv2 Profile is listed) and enabled on interface GigabitEthernet2:
Router2#show crypto map
Crypto Map IPv4 "CMAP2" 10 ipsec-isakmp
Peer = 192.168.1.200
IKEv2 Profile: profile1
Access-List SS dynamic: False
Extended IP access list 120
access-list 120 permit ip 192.168.21.0 0.0.0.255 192.168.22.0 0.0.0.255
Current peer: 192.168.1.200
Security association lifetime: 4608000 kilobytes/3600 seconds
Dualstack (Y/N): N
Responder-Only (Y/N): N
PFS (Y/N): N
Mixed-mode : Disabled
Transform sets={
AESSET: { esp-256-aes esp-sha256-hmac } ,
}
Interfaces using crypto map CMAP2:
GigabitEthernet2
Router2#
If this is the only crypto map configured on the device, this device is not affected by this vulnerability.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products ["#vp"] section of this advisory are known to be affected by this vulnerability.
Cisco has confirmed that this vulnerability does not affect the following Cisco products:
IOS Software
IOS XE Software that is running on devices other than those listed in the Vulnerable Products ["#vp"] section
IOS XR Software
Meraki products
NX-OS Software
Workarounds
There are no workarounds that address this vulnerability.
Fixed Software
Cisco has released free software updates ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#ssu"] that address the vulnerability described in this advisory. Customers with service contracts that entitle them to regular software updates should obtain security fixes through their usual update channels.
Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:
https://www.cisco.com/c/en/us/products/end-user-license-agreement.html ["https://www.cisco.com/c/en/us/products/end-user-license-agreement.html"]
Additionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.
The Cisco Support and Downloads page ["https://www.cisco.com/c/en/us/support/index.html"] on Cisco.com provides information about licensing and downloads. This page can also display customer device support coverage for customers who use the My Devices tool.
When considering software upgrades ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page ["https://www.cisco.com/go/psirt"], to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
Customers Without Service Contracts
Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html ["https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"]
Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.
Cisco IOS and IOS XE Software
To help customers determine their exposure to vulnerabilities in Cisco IOS and IOS XE Software, Cisco provides the Cisco Software Checker ["https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"]. This tool identifies any Cisco security advisories that impact a specific software release and the earliest release that fixes the vulnerabilities that are described in each advisory (“First Fixed”). If applicable, the tool also returns the earliest release that fixes all the vulnerabilities that are described in all the advisories that the Software Checker identifies (“Combined First Fixed”).
To use the tool, go to the Cisco Software Checker ["https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"] page and follow the instructions. Alternatively, use the following form to determine whether a release is affected by any Cisco Security Advisory. To use the form, follow these steps:
Choose which advisories the tool will search—only this advisory, only advisories with a Critical or High Security Impact Rating (SIR) ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#asr"], or all advisories.
Enter a release number—for example, 15.9(3)M2 or 17.3.3.
Click Check.
Only this advisory All Critical and High advisories All advisories
Vulnerability Policy
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy ["http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
Exploitation and Public Announcements
The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
Source
This vulnerability was found during the resolution of a Cisco TAC support case.
Legal Disclaimer
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.
{
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"category": "csaf_security_advisory",
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"notes": [
{
"category": "summary",
"text": "A vulnerability in the Internet Key Exchange version 1 (IKEv1) implementation of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The attacker must have valid IKEv1 VPN credentials to exploit this vulnerability.\r\n\r\nThis vulnerability is due to improper validation of IKEv1 phase 2 parameters before the IPsec security association creation request is handed off to the hardware cryptographic accelerator of an affected device. An attacker could exploit this vulnerability by sending crafted IKEv1 messages to the affected device. A successful exploit could allow the attacker to cause the device to reload.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\n\r\n\r\nThis advisory is part of the May 2025 release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: May 2025 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication [\"https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75279\"].",
"title": "Summary"
},
{
"category": "general",
"text": "This vulnerability affects the following Cisco products if they are running a vulnerable release of Cisco IOS XE Software and have IKEv1 VPN enabled:\r\n\r\n1000 Series Integrated Services Routers (ISRs)\r\n4000 Series ISRs\r\nCatalyst 8200 Series Edge Platforms\r\nCatalyst 8300 Series Edge Platforms\r\nCatalyst 8500 Series Edge Platforms\r\nCatalyst 8500L Series Edge Platforms\r\n\r\nThe following features are affected by this vulnerability if they are configured to use IKEv1:\r\n\r\nDynamic Multipoint VPN (DMVPN)\r\nRemote Access IPsec VPN (RAVPN)\r\nSite-to-Site VPN (S2S VPN)\r\n\r\nNote: Cisco Group Encrypted Transport VPN (GET VPN) and SSL VPN do not use IKEv1 for IPsec session establishment and are not affected by this vulnerability.\r\n\r\nFor information about which Cisco software releases are vulnerable, see the Fixed Software [\"#fs\"] section of this advisory.\r\n Determine the Device Configuration\r\n1. Determine Whether IKE (v1 or v2) Is Enabled\r\n\r\nTo determine whether IKE processing is enabled, use the show ip socket | include 500 or show udp | include 500 EXEC command on the device CLI. If UDP port 500 or UDP port 4500 is open on a device, the device is processing IKE packets.\r\n\r\nNote: UDP ports 500 or 4500 or both will be open regardless of whether IKEv1 or IKEv2 is enabled, as both use the same port and protocol numbers.\r\n\r\nThe following example shows the output of the show udp | include 500 command on a device that is processing IKE packets on UDP ports 500 and 4500 using either IPv4 or IPv6:\r\n\r\n\r\nRouter#show udp | include 500\r\n 17 --listen-- 192.168.1.10 500 0 0 2001011 0\r\n 17(v6) --listen-- --any-- 500 0 0 2020011 0\r\n 17 --listen-- 192.168.1.10 4500 0 0 2001011 0\r\n 17(v6) --listen-- --any-- 4500 0 0 2020011 0\r\n\r\nIf this command returns empty output, the device is not affected by this vulnerability. Otherwise, proceed to step 2.\r\n\r\n2. Determine Whether IKEv1 Is Used\r\n\r\nTo determine whether IKEv1 is being actively used by the device, use the show crypto map EXEC command on the device CLI. A crypto map uses IKEv1 if it does not have an IKEv2 Profile associated. A crypto map is active if there is at least one interface using that crypto map.\r\n\r\nThe following example shows the output of the show crypto map command on a device that has crypto map CMAP1 configured to use IKEv1 (because no IKEv2 Profile is listed) and enabled on interface GigabitEthernet1:\r\n\r\n\r\nRouter1#show crypto map\r\nCrypto Map IPv4 \"CMAP1\" 10 ipsec-isakmp\r\n Peer = 192.168.1.100\r\n Access-List SS dynamic: False\r\n Extended IP access list 120\r\n access-list 110 permit ip 192.168.11.0 0.0.0.255 192.168.12.0 0.0.0.255\r\n Current peer: 192.168.1.100\r\n Security association lifetime: 4608000 kilobytes/3600 seconds\r\n Dualstack (Y/N): N\r\n\r\n Responder-Only (Y/N): N\r\n PFS (Y/N): N\r\n Mixed-mode : Disabled\r\n Transform sets={\r\n AESSET: { esp-256-aes esp-sha256-hmac } ,\r\n }\r\n Interfaces using crypto map CMAP1:\r\n GigabitEthernet1\r\n\r\nRouter1#\r\n\r\nThis device is affected by this vulnerability.\r\n\r\nThe following example shows the output of the show crypto map command on a device that has crypto map CMAP2 configured to use IKEv2 (because an IKEv2 Profile is listed) and enabled on interface GigabitEthernet2:\r\n\r\n\r\nRouter2#show crypto map\r\nCrypto Map IPv4 \"CMAP2\" 10 ipsec-isakmp\r\n Peer = 192.168.1.200\r\n IKEv2 Profile: profile1\r\n Access-List SS dynamic: False\r\n Extended IP access list 120\r\n access-list 120 permit ip 192.168.21.0 0.0.0.255 192.168.22.0 0.0.0.255\r\n Current peer: 192.168.1.200\r\n Security association lifetime: 4608000 kilobytes/3600 seconds\r\n Dualstack (Y/N): N\r\n\r\n Responder-Only (Y/N): N\r\n PFS (Y/N): N\r\n Mixed-mode : Disabled\r\n Transform sets={\r\n AESSET: { esp-256-aes esp-sha256-hmac } ,\r\n }\r\n Interfaces using crypto map CMAP2:\r\n GigabitEthernet2\r\n\r\nRouter2#\r\n\r\nIf this is the only crypto map configured on the device, this device is not affected by this vulnerability.",
"title": "Vulnerable Products"
},
{
"category": "general",
"text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.\r\n\r\nCisco has confirmed that this vulnerability does not affect the following Cisco products:\r\n\r\nIOS Software\r\nIOS XE Software that is running on devices other than those listed in the Vulnerable Products [\"#vp\"] section\r\nIOS XR Software\r\nMeraki products\r\nNX-OS Software",
"title": "Products Confirmed Not Vulnerable"
},
{
"category": "general",
"text": "There are no workarounds that address this vulnerability.",
"title": "Workarounds"
},
{
"category": "general",
"text": "Cisco has released free software updates [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#ssu\"] that address the vulnerability described in this advisory. Customers with service contracts that entitle them to regular software updates should obtain security fixes through their usual update channels.\r\n\r\nCustomers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:\r\nhttps://www.cisco.com/c/en/us/products/end-user-license-agreement.html [\"https://www.cisco.com/c/en/us/products/end-user-license-agreement.html\"]\r\n\r\nAdditionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.\r\n\r\nThe Cisco Support and Downloads page [\"https://www.cisco.com/c/en/us/support/index.html\"] on Cisco.com provides information about licensing and downloads. This page can also display customer device support coverage for customers who use the My Devices tool.\r\n\r\nWhen considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page [\"https://www.cisco.com/go/psirt\"], to determine exposure and a complete upgrade solution.\r\n\r\nIn all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.\r\n Customers Without Service Contracts\r\nCustomers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"]\r\n\r\nCustomers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.\r\n Cisco IOS and IOS XE Software\r\nTo help customers determine their exposure to vulnerabilities in Cisco IOS and IOS XE Software, Cisco provides the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"]. This tool identifies any Cisco security advisories that impact a specific software release and the earliest release that fixes the vulnerabilities that are described in each advisory (\u201cFirst Fixed\u201d). If applicable, the tool also returns the earliest release that fixes all the vulnerabilities that are described in all the advisories that the Software Checker identifies (\u201cCombined First Fixed\u201d).\r\n\r\nTo use the tool, go to the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] page and follow the instructions. Alternatively, use the following form to determine whether a release is affected by any Cisco Security Advisory. To use the form, follow these steps:\r\n\r\nChoose which advisories the tool will search\u2014only this advisory, only advisories with a Critical or High Security Impact Rating (SIR) [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#asr\"], or all advisories.\r\nEnter a release number\u2014for example, 15.9(3)M2 or 17.3.3.\r\nClick Check.\r\n\r\n Only this advisory All Critical and High advisories All advisories",
"title": "Fixed Software"
},
{
"category": "general",
"text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html\"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.",
"title": "Vulnerability Policy"
},
{
"category": "general",
"text": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.",
"title": "Exploitation and Public Announcements"
},
{
"category": "general",
"text": "This vulnerability was found during the resolution of a Cisco TAC support case.",
"title": "Source"
},
{
"category": "legal_disclaimer",
"text": "THIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.\r\n\r\nA standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.",
"title": "Legal Disclaimer"
}
],
"publisher": {
"category": "vendor",
"contact_details": "psirt@cisco.com",
"issuing_authority": "Cisco PSIRT",
"name": "Cisco",
"namespace": "https://wwww.cisco.com"
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"references": [
{
"category": "self",
"summary": "Cisco IOS XE Software Internet Key Exchange Version 1 Denial of Service Vulnerability",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ikev1-dos-XHk3HzFC"
},
{
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"url": "https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75279"
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"url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#ssu"
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{
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"summary": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html",
"url": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html"
},
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"url": "https://www.cisco.com/c/en/us/support/index.html"
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"url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
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"url": "https://www.cisco.com/go/psirt"
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"url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"
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"category": "external",
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"url": "http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html"
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],
"title": "Cisco IOS XE Software Internet Key Exchange Version 1 Denial of Service Vulnerability",
"tracking": {
"current_release_date": "2025-05-07T16:00:00+00:00",
"generator": {
"date": "2025-05-07T15:59:45+00:00",
"engine": {
"name": "TVCE"
}
},
"id": "cisco-sa-iosxe-ikev1-dos-XHk3HzFC",
"initial_release_date": "2025-05-07T16:00:00+00:00",
"revision_history": [
{
"date": "2025-05-07T15:53:17+00:00",
"number": "1.0.0",
"summary": "Initial public release."
}
],
"status": "final",
"version": "1.0.0"
}
},
"product_tree": {
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{
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{
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{
"category": "service_pack",
"name": "3.13.0S",
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"product_id": "CSAFPID-201495"
}
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{
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"product_id": "CSAFPID-206174"
}
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"product_id": "CSAFPID-213475"
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"product_id": "CSAFPID-213557"
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"name": "3.13.6S",
"product": {
"name": "3.13.6S",
"product_id": "CSAFPID-217262"
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{
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"product_id": "CSAFPID-217263"
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"product_id": "CSAFPID-227923"
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{
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"name": "3.13.9S",
"product": {
"name": "3.13.9S",
"product_id": "CSAFPID-231454"
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}
],
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},
{
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},
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},
{
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},
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{
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{
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},
{
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}
],
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"name": "17.5"
},
{
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},
{
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},
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},
{
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],
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},
{
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},
{
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}
},
{
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}
],
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},
{
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},
{
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}
],
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},
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}
],
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},
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},
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},
{
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},
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},
{
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},
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},
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},
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},
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},
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},
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},
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}
],
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},
{
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},
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},
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},
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},
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},
{
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],
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"name": "17.12"
},
{
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"name": "17.13.1",
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}
},
{
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"name": "17.13.1a",
"product": {
"name": "17.13.1a",
"product_id": "CSAFPID-300947"
}
}
],
"category": "product_version",
"name": "17.13"
},
{
"branches": [
{
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"name": "17.14.1",
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"product_id": "CSAFPID-295361"
}
},
{
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"name": "17.14.1a",
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}
],
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}
],
"category": "product_family",
"name": "Cisco IOS XE Software"
}
],
"category": "vendor",
"name": "Cisco"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2025-20192",
"ids": [
{
"system_name": "Cisco Bug ID",
"text": "CSCwi26594"
}
],
"notes": [
{
"category": "other",
"text": "Complete.",
"title": "Affected Product Comprehensiveness"
}
],
"product_status": {
"known_affected": [
"CSAFPID-201495",
"CSAFPID-206174",
"CSAFPID-206175",
"CSAFPID-206178",
"CSAFPID-206180",
"CSAFPID-206181",
"CSAFPID-206191",
"CSAFPID-206192",
"CSAFPID-206193",
"CSAFPID-210078",
"CSAFPID-210079",
"CSAFPID-210081",
"CSAFPID-212268",
"CSAFPID-212411",
"CSAFPID-212412",
"CSAFPID-213475",
"CSAFPID-213477",
"CSAFPID-213478",
"CSAFPID-213557",
"CSAFPID-213700",
"CSAFPID-213776",
"CSAFPID-213778",
"CSAFPID-213779",
"CSAFPID-213809",
"CSAFPID-213960",
"CSAFPID-214051",
"CSAFPID-217234",
"CSAFPID-217253",
"CSAFPID-217255",
"CSAFPID-217256",
"CSAFPID-217257",
"CSAFPID-217259",
"CSAFPID-217262",
"CSAFPID-217263",
"CSAFPID-217264",
"CSAFPID-218901",
"CSAFPID-218903",
"CSAFPID-218905",
"CSAFPID-220688",
"CSAFPID-220802",
"CSAFPID-220993",
"CSAFPID-222257",
"CSAFPID-222693",
"CSAFPID-222694",
"CSAFPID-222711",
"CSAFPID-222925",
"CSAFPID-222942",
"CSAFPID-223252",
"CSAFPID-224702",
"CSAFPID-225099",
"CSAFPID-225466",
"CSAFPID-225832",
"CSAFPID-225856",
"CSAFPID-225858",
"CSAFPID-226160",
"CSAFPID-226330",
"CSAFPID-227556",
"CSAFPID-227918",
"CSAFPID-227920",
"CSAFPID-227923",
"CSAFPID-228690",
"CSAFPID-228706",
"CSAFPID-229124",
"CSAFPID-229187",
"CSAFPID-230303",
"CSAFPID-231390",
"CSAFPID-231454",
"CSAFPID-231667",
"CSAFPID-231682",
"CSAFPID-232008",
"CSAFPID-232461",
"CSAFPID-233141",
"CSAFPID-233155",
"CSAFPID-233447",
"CSAFPID-234928",
"CSAFPID-236834",
"CSAFPID-236837",
"CSAFPID-238937",
"CSAFPID-239264",
"CSAFPID-241736",
"CSAFPID-244070",
"CSAFPID-244071",
"CSAFPID-244530",
"CSAFPID-244900",
"CSAFPID-244912",
"CSAFPID-245377",
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"CSAFPID-251075",
"CSAFPID-251165",
"CSAFPID-251225",
"CSAFPID-252045",
"CSAFPID-252271",
"CSAFPID-252272",
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"CSAFPID-257984",
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"CSAFPID-261240",
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"CSAFPID-262389",
"CSAFPID-262390",
"CSAFPID-262549",
"CSAFPID-262588",
"CSAFPID-262590",
"CSAFPID-262592",
"CSAFPID-264096",
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"CSAFPID-271798",
"CSAFPID-273112",
"CSAFPID-273445",
"CSAFPID-273448",
"CSAFPID-273509",
"CSAFPID-273563",
"CSAFPID-274818",
"CSAFPID-275538",
"CSAFPID-277099",
"CSAFPID-277147",
"CSAFPID-277148",
"CSAFPID-277194",
"CSAFPID-277255",
"CSAFPID-277338",
"CSAFPID-277348",
"CSAFPID-277357",
"CSAFPID-277945",
"CSAFPID-278002",
"CSAFPID-278018",
"CSAFPID-278019",
"CSAFPID-278020",
"CSAFPID-278023",
"CSAFPID-278025",
"CSAFPID-278402",
"CSAFPID-278504",
"CSAFPID-279338",
"CSAFPID-280463",
"CSAFPID-280651",
"CSAFPID-280652",
"CSAFPID-280770",
"CSAFPID-280801",
"CSAFPID-280899",
"CSAFPID-280937",
"CSAFPID-280938",
"CSAFPID-280939",
"CSAFPID-282028",
"CSAFPID-282046",
"CSAFPID-282115",
"CSAFPID-282116",
"CSAFPID-282117",
"CSAFPID-283835",
"CSAFPID-284178",
"CSAFPID-284179",
"CSAFPID-284331",
"CSAFPID-285329",
"CSAFPID-286031",
"CSAFPID-286409",
"CSAFPID-286477",
"CSAFPID-286486",
"CSAFPID-286534",
"CSAFPID-286594",
"CSAFPID-286799",
"CSAFPID-286801",
"CSAFPID-287087",
"CSAFPID-288221",
"CSAFPID-288247",
"CSAFPID-290562",
"CSAFPID-290580",
"CSAFPID-290596",
"CSAFPID-290660",
"CSAFPID-290671",
"CSAFPID-290674",
"CSAFPID-290675",
"CSAFPID-292656",
"CSAFPID-292698",
"CSAFPID-294838",
"CSAFPID-295198",
"CSAFPID-295359",
"CSAFPID-295361",
"CSAFPID-295398",
"CSAFPID-295412",
"CSAFPID-300012",
"CSAFPID-300263",
"CSAFPID-300834",
"CSAFPID-300845",
"CSAFPID-300847",
"CSAFPID-300848",
"CSAFPID-300850",
"CSAFPID-300851",
"CSAFPID-300936",
"CSAFPID-300947",
"CSAFPID-300948",
"CSAFPID-301278",
"CSAFPID-301611",
"CSAFPID-301619",
"CSAFPID-301722",
"CSAFPID-302628",
"CSAFPID-302644",
"CSAFPID-302784",
"CSAFPID-302974",
"CSAFPID-303047",
"CSAFPID-303316"
]
},
"release_date": "2025-05-07T16:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Cisco has released software updates that address this vulnerability.",
"product_ids": [
"CSAFPID-201495",
"CSAFPID-206174",
"CSAFPID-206175",
"CSAFPID-206178",
"CSAFPID-206180",
"CSAFPID-206181",
"CSAFPID-206191",
"CSAFPID-206192",
"CSAFPID-206193",
"CSAFPID-210078",
"CSAFPID-210079",
"CSAFPID-210081",
"CSAFPID-212268",
"CSAFPID-212411",
"CSAFPID-212412",
"CSAFPID-213475",
"CSAFPID-213477",
"CSAFPID-213478",
"CSAFPID-213557",
"CSAFPID-213700",
"CSAFPID-213776",
"CSAFPID-213778",
"CSAFPID-213779",
"CSAFPID-213809",
"CSAFPID-213960",
"CSAFPID-214051",
"CSAFPID-217234",
"CSAFPID-217253",
"CSAFPID-217255",
"CSAFPID-217256",
"CSAFPID-217257",
"CSAFPID-217259",
"CSAFPID-217262",
"CSAFPID-217263",
"CSAFPID-217264",
"CSAFPID-218901",
"CSAFPID-218903",
"CSAFPID-218905",
"CSAFPID-220688",
"CSAFPID-220802",
"CSAFPID-220993",
"CSAFPID-222257",
"CSAFPID-222693",
"CSAFPID-222694",
"CSAFPID-222711",
"CSAFPID-222925",
"CSAFPID-222942",
"CSAFPID-223252",
"CSAFPID-224702",
"CSAFPID-225099",
"CSAFPID-225466",
"CSAFPID-225832",
"CSAFPID-225856",
"CSAFPID-225858",
"CSAFPID-226160",
"CSAFPID-226330",
"CSAFPID-227556",
"CSAFPID-227918",
"CSAFPID-227920",
"CSAFPID-227923",
"CSAFPID-228690",
"CSAFPID-228706",
"CSAFPID-229124",
"CSAFPID-229187",
"CSAFPID-230303",
"CSAFPID-231390",
"CSAFPID-231454",
"CSAFPID-231667",
"CSAFPID-231682",
"CSAFPID-232008",
"CSAFPID-232461",
"CSAFPID-233141",
"CSAFPID-233155",
"CSAFPID-233447",
"CSAFPID-234928",
"CSAFPID-236834",
"CSAFPID-236837",
"CSAFPID-238937",
"CSAFPID-239264",
"CSAFPID-241736",
"CSAFPID-244070",
"CSAFPID-244071",
"CSAFPID-244530",
"CSAFPID-244900",
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"CSAFPID-250629",
"CSAFPID-251075",
"CSAFPID-251165",
"CSAFPID-251225",
"CSAFPID-252045",
"CSAFPID-252271",
"CSAFPID-252272",
"CSAFPID-252913",
"CSAFPID-252914",
"CSAFPID-254712",
"CSAFPID-257955",
"CSAFPID-257984",
"CSAFPID-258406",
"CSAFPID-260917",
"CSAFPID-261240",
"CSAFPID-261241",
"CSAFPID-261465",
"CSAFPID-262389",
"CSAFPID-262390",
"CSAFPID-262549",
"CSAFPID-262588",
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"CSAFPID-262592",
"CSAFPID-264096",
"CSAFPID-265735",
"CSAFPID-265841",
"CSAFPID-267110",
"CSAFPID-267605",
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"CSAFPID-278002",
"CSAFPID-278018",
"CSAFPID-278019",
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"CSAFPID-278023",
"CSAFPID-278025",
"CSAFPID-278402",
"CSAFPID-278504",
"CSAFPID-279338",
"CSAFPID-280463",
"CSAFPID-280651",
"CSAFPID-280652",
"CSAFPID-280770",
"CSAFPID-280801",
"CSAFPID-280899",
"CSAFPID-280937",
"CSAFPID-280938",
"CSAFPID-280939",
"CSAFPID-282028",
"CSAFPID-282046",
"CSAFPID-282115",
"CSAFPID-282116",
"CSAFPID-282117",
"CSAFPID-283835",
"CSAFPID-284178",
"CSAFPID-284179",
"CSAFPID-284331",
"CSAFPID-285329",
"CSAFPID-286031",
"CSAFPID-286409",
"CSAFPID-286477",
"CSAFPID-286486",
"CSAFPID-286534",
"CSAFPID-286594",
"CSAFPID-286799",
"CSAFPID-286801",
"CSAFPID-287087",
"CSAFPID-288221",
"CSAFPID-288247",
"CSAFPID-290562",
"CSAFPID-290580",
"CSAFPID-290596",
"CSAFPID-290660",
"CSAFPID-290671",
"CSAFPID-290674",
"CSAFPID-290675",
"CSAFPID-292656",
"CSAFPID-292698",
"CSAFPID-294838",
"CSAFPID-295198",
"CSAFPID-295359",
"CSAFPID-295361",
"CSAFPID-295398",
"CSAFPID-295412",
"CSAFPID-300012",
"CSAFPID-300263",
"CSAFPID-300834",
"CSAFPID-300845",
"CSAFPID-300847",
"CSAFPID-300848",
"CSAFPID-300850",
"CSAFPID-300851",
"CSAFPID-300936",
"CSAFPID-300947",
"CSAFPID-300948",
"CSAFPID-301278",
"CSAFPID-301611",
"CSAFPID-301619",
"CSAFPID-301722",
"CSAFPID-302628",
"CSAFPID-302644",
"CSAFPID-302784",
"CSAFPID-302974",
"CSAFPID-303047",
"CSAFPID-303316"
],
"url": "https://software.cisco.com"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.7,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
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"CSAFPID-206174",
"CSAFPID-206175",
"CSAFPID-206178",
"CSAFPID-206180",
"CSAFPID-206181",
"CSAFPID-206191",
"CSAFPID-206192",
"CSAFPID-206193",
"CSAFPID-210078",
"CSAFPID-210079",
"CSAFPID-210081",
"CSAFPID-212268",
"CSAFPID-212411",
"CSAFPID-212412",
"CSAFPID-213475",
"CSAFPID-213477",
"CSAFPID-213478",
"CSAFPID-213557",
"CSAFPID-213700",
"CSAFPID-213776",
"CSAFPID-213778",
"CSAFPID-213779",
"CSAFPID-213809",
"CSAFPID-213960",
"CSAFPID-214051",
"CSAFPID-217234",
"CSAFPID-217253",
"CSAFPID-217255",
"CSAFPID-217256",
"CSAFPID-217257",
"CSAFPID-217259",
"CSAFPID-217262",
"CSAFPID-217263",
"CSAFPID-217264",
"CSAFPID-218901",
"CSAFPID-218903",
"CSAFPID-218905",
"CSAFPID-220688",
"CSAFPID-220802",
"CSAFPID-220993",
"CSAFPID-222257",
"CSAFPID-222693",
"CSAFPID-222694",
"CSAFPID-222711",
"CSAFPID-222925",
"CSAFPID-222942",
"CSAFPID-223252",
"CSAFPID-224702",
"CSAFPID-225099",
"CSAFPID-225466",
"CSAFPID-225832",
"CSAFPID-225856",
"CSAFPID-225858",
"CSAFPID-226160",
"CSAFPID-226330",
"CSAFPID-227556",
"CSAFPID-227918",
"CSAFPID-227920",
"CSAFPID-227923",
"CSAFPID-228690",
"CSAFPID-228706",
"CSAFPID-229124",
"CSAFPID-229187",
"CSAFPID-230303",
"CSAFPID-231390",
"CSAFPID-231454",
"CSAFPID-231667",
"CSAFPID-231682",
"CSAFPID-232008",
"CSAFPID-232461",
"CSAFPID-233141",
"CSAFPID-233155",
"CSAFPID-233447",
"CSAFPID-234928",
"CSAFPID-236834",
"CSAFPID-236837",
"CSAFPID-238937",
"CSAFPID-239264",
"CSAFPID-241736",
"CSAFPID-244070",
"CSAFPID-244071",
"CSAFPID-244530",
"CSAFPID-244900",
"CSAFPID-244912",
"CSAFPID-245377",
"CSAFPID-250629",
"CSAFPID-251075",
"CSAFPID-251165",
"CSAFPID-251225",
"CSAFPID-252045",
"CSAFPID-252271",
"CSAFPID-252272",
"CSAFPID-252913",
"CSAFPID-252914",
"CSAFPID-254712",
"CSAFPID-257955",
"CSAFPID-257984",
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"CSAFPID-261240",
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"CSAFPID-262389",
"CSAFPID-262390",
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"CSAFPID-277099",
"CSAFPID-277147",
"CSAFPID-277148",
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"CSAFPID-278018",
"CSAFPID-278019",
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"CSAFPID-280801",
"CSAFPID-280899",
"CSAFPID-280937",
"CSAFPID-280938",
"CSAFPID-280939",
"CSAFPID-282028",
"CSAFPID-282046",
"CSAFPID-282115",
"CSAFPID-282116",
"CSAFPID-282117",
"CSAFPID-283835",
"CSAFPID-284178",
"CSAFPID-284179",
"CSAFPID-284331",
"CSAFPID-285329",
"CSAFPID-286031",
"CSAFPID-286409",
"CSAFPID-286477",
"CSAFPID-286486",
"CSAFPID-286534",
"CSAFPID-286594",
"CSAFPID-286799",
"CSAFPID-286801",
"CSAFPID-287087",
"CSAFPID-288221",
"CSAFPID-288247",
"CSAFPID-290562",
"CSAFPID-290580",
"CSAFPID-290596",
"CSAFPID-290660",
"CSAFPID-290671",
"CSAFPID-290674",
"CSAFPID-290675",
"CSAFPID-292656",
"CSAFPID-292698",
"CSAFPID-294838",
"CSAFPID-295198",
"CSAFPID-295359",
"CSAFPID-295361",
"CSAFPID-295398",
"CSAFPID-295412",
"CSAFPID-300012",
"CSAFPID-300263",
"CSAFPID-300834",
"CSAFPID-300845",
"CSAFPID-300847",
"CSAFPID-300848",
"CSAFPID-300850",
"CSAFPID-300851",
"CSAFPID-300936",
"CSAFPID-300947",
"CSAFPID-300948",
"CSAFPID-301278",
"CSAFPID-301611",
"CSAFPID-301619",
"CSAFPID-301722",
"CSAFPID-302628",
"CSAFPID-302644",
"CSAFPID-302784",
"CSAFPID-302974",
"CSAFPID-303047",
"CSAFPID-303316"
]
}
],
"title": "Cisco IOS XE Software Internet Key Exchange Version 1 Denial of Service Vulnerability"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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