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wid-sec-w-2025-0970
Vulnerability from csaf_certbund
Published
2025-05-07 22:00
Modified
2025-05-07 22:00
Summary
Cisco IOS XE Software for WLC Wireless IPv6 Clients: Schwachstelle ermöglicht Denial of Service
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung
Cisco Internetwork Operating System (IOS) ist ein Betriebssystem, das für Cisco Geräte wie z. B. Router und Switches eingesetzt wird.
Angriff
Ein Angreifer aus einem angrenzenden Netzwerk kann eine Schwachstelle in Cisco IOS XE Software for WLC Wireless IPv6 Clients ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme
- Sonstiges
{ "document": { "aggregate_severity": { "text": "mittel" }, "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "de-DE", "notes": [ { "category": "legal_disclaimer", "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen." }, { "category": "description", "text": "Cisco Internetwork Operating System (IOS) ist ein Betriebssystem, das f\u00fcr Cisco Ger\u00e4te wie z. B. Router und Switches eingesetzt wird.", "title": "Produktbeschreibung" }, { "category": "summary", "text": "Ein Angreifer aus einem angrenzenden Netzwerk kann eine Schwachstelle in Cisco IOS XE Software for WLC Wireless IPv6 Clients ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.", "title": "Angriff" }, { "category": "general", "text": "- Sonstiges", "title": "Betroffene Betriebssysteme" } ], "publisher": { "category": "other", "contact_details": "csaf-provider@cert-bund.de", "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik", "namespace": "https://www.bsi.bund.de" }, "references": [ { "category": "self", "summary": "WID-SEC-W-2025-0970 - CSAF Version", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-0970.json" }, { "category": "self", "summary": "WID-SEC-2025-0970 - Portal Version", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-0970" }, { "category": "external", "summary": "Cisco Security Advisory cisco-sa-wlc-wncd-p6Gvt6HL vom 2025-05-07", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-wncd-p6Gvt6HL" } ], "source_lang": "en-US", "title": "Cisco IOS XE Software for WLC Wireless IPv6 Clients: Schwachstelle erm\u00f6glicht Denial of Service", "tracking": { "current_release_date": "2025-05-07T22:00:00.000+00:00", "generator": { "date": "2025-05-08T08:54:13.179+00:00", "engine": { "name": "BSI-WID", "version": "1.3.12" } }, "id": "WID-SEC-W-2025-0970", "initial_release_date": "2025-05-07T22:00:00.000+00:00", "revision_history": [ { "date": "2025-05-07T22:00:00.000+00:00", "number": "1", "summary": "Initiale Fassung" } ], "status": "final", "version": "1" } }, "product_tree": { "branches": [ { "branches": [ { "category": "product_name", "name": "Cisco IOS XE", "product": { "name": "Cisco IOS XE", "product_id": "T043468", "product_identification_helper": { "cpe": "cpe:/o:cisco:ios_xe:-" } } } ], "category": "vendor", "name": "Cisco" } ] }, "vulnerabilities": [ { "cve": "CVE-2025-20140", "product_status": { "known_affected": [ "T043468" ] }, "release_date": "2025-05-07T22:00:00.000+00:00", "title": "CVE-2025-20140" } ] }
CVE-2025-20140 (GCVE-0-2025-20140)
Vulnerability from cvelistv5
Published
2025-05-07 17:36
Modified
2025-05-07 17:51
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-789 - Uncontrolled Memory Allocation
Summary
A vulnerability in the Wireless Network Control daemon (wncd) of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, adjacent wireless attacker to cause a denial of service (DoS) condition.
This vulnerability is due to improper memory management. An attacker could exploit this vulnerability by sending a series of IPv6 network requests from an associated wireless IPv6 client to an affected device. To associate a client to a device, an attacker may first need to authenticate to the network, or associate freely in the case of a configured open network. A successful exploit could allow the attacker to cause the wncd process to consume available memory and eventually cause the device to stop responding, resulting in a DoS condition.
References
Impacted products
Vendor | Product | Version | ||
---|---|---|---|---|
Cisco | Cisco IOS XE Software |
Version: 16.4.1 Version: 16.4.2 Version: 16.4.3 Version: 16.5.1 Version: 16.5.1a Version: 16.5.1b Version: 16.5.2 Version: 16.5.3 Version: 16.6.1 Version: 16.6.2 Version: 16.6.3 Version: 16.6.4 Version: 16.6.5 Version: 16.6.4a Version: 16.6.5a Version: 16.6.6 Version: 16.6.7 Version: 16.6.8 Version: 16.6.9 Version: 16.6.10 Version: 16.7.1 Version: 16.7.1a Version: 16.7.1b Version: 16.7.2 Version: 16.7.3 Version: 16.7.4 Version: 16.8.1 Version: 16.8.1a Version: 16.8.1b Version: 16.8.1s Version: 16.8.1c Version: 16.8.1d Version: 16.8.2 Version: 16.8.1e Version: 16.8.3 Version: 16.9.1 Version: 16.9.2 Version: 16.9.1a Version: 16.9.1b Version: 16.9.1s Version: 16.9.3 Version: 16.9.4 Version: 16.9.3a Version: 16.9.5 Version: 16.9.5f Version: 16.9.6 Version: 16.9.7 Version: 16.9.8 Version: 16.10.1 Version: 16.10.1a Version: 16.10.1b Version: 16.10.1s Version: 16.10.1c Version: 16.10.1e Version: 16.10.1d Version: 16.10.2 Version: 16.10.1f Version: 16.10.1g Version: 16.10.3 Version: 16.11.1 Version: 16.11.1a Version: 16.11.1b Version: 16.11.2 Version: 16.11.1s Version: 16.12.1 Version: 16.12.1s Version: 16.12.1a Version: 16.12.1c Version: 16.12.1w Version: 16.12.2 Version: 16.12.1y Version: 16.12.2a Version: 16.12.3 Version: 16.12.8 Version: 16.12.2s Version: 16.12.1x Version: 16.12.1t Version: 16.12.4 Version: 16.12.3s Version: 16.12.3a Version: 16.12.4a Version: 16.12.5 Version: 16.12.6 Version: 16.12.1z1 Version: 16.12.5a Version: 16.12.5b Version: 16.12.1z2 Version: 16.12.6a Version: 16.12.7 Version: 16.12.9 Version: 16.12.10 Version: 16.12.10a Version: 16.12.11 Version: 16.12.12 Version: 17.1.1 Version: 17.1.1a Version: 17.1.1s Version: 17.1.1t Version: 17.1.3 Version: 17.2.1 Version: 17.2.1r Version: 17.2.1a Version: 17.2.1v Version: 17.2.2 Version: 17.2.3 Version: 17.3.1 Version: 17.3.2 Version: 17.3.3 Version: 17.3.1a Version: 17.3.1w Version: 17.3.2a Version: 17.3.1x Version: 17.3.1z Version: 17.3.4 Version: 17.3.5 Version: 17.3.4a Version: 17.3.6 Version: 17.3.4b Version: 17.3.4c Version: 17.3.5a Version: 17.3.5b Version: 17.3.7 Version: 17.3.8 Version: 17.3.8a Version: 17.4.1 Version: 17.4.2 Version: 17.4.1a Version: 17.4.1b Version: 17.4.2a Version: 17.5.1 Version: 17.5.1a Version: 17.6.1 Version: 17.6.2 Version: 17.6.1w Version: 17.6.1a Version: 17.6.1x Version: 17.6.3 Version: 17.6.1y Version: 17.6.1z Version: 17.6.3a Version: 17.6.4 Version: 17.6.1z1 Version: 17.6.5 Version: 17.6.6 Version: 17.6.6a Version: 17.6.5a Version: 17.6.7 Version: 17.6.8 Version: 17.6.8a Version: 17.7.1 Version: 17.7.1a Version: 17.7.1b Version: 17.7.2 Version: 17.10.1 Version: 17.10.1a Version: 17.10.1b Version: 17.8.1 Version: 17.8.1a Version: 17.9.1 Version: 17.9.1w Version: 17.9.2 Version: 17.9.1a Version: 17.9.1x Version: 17.9.1y Version: 17.9.3 Version: 17.9.2a Version: 17.9.1x1 Version: 17.9.3a Version: 17.9.4 Version: 17.9.1y1 Version: 17.9.5 Version: 17.9.4a Version: 17.9.5a Version: 17.9.5b Version: 17.9.5e Version: 17.9.5f Version: 17.11.1 Version: 17.11.1a Version: 17.12.1 Version: 17.12.1w Version: 17.12.1a Version: 17.12.1x Version: 17.12.2 Version: 17.12.3 Version: 17.12.2a Version: 17.12.1y Version: 17.12.1z Version: 17.12.3a Version: 17.12.1z1 Version: 17.13.1 Version: 17.13.1a Version: 17.14.1 Version: 17.14.1a Version: 17.11.99SW |
{ "containers": { "adp": [ { "metrics": [ { "other": { "content": { "id": "CVE-2025-20140", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "timestamp": "2025-05-07T17:51:06.503225Z", "version": "2.0.3" }, "type": "ssvc" } } ], "providerMetadata": { "dateUpdated": "2025-05-07T17:51:42.769Z", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP" }, "title": "CISA ADP Vulnrichment" } ], "cna": { "affected": [ { "product": "Cisco IOS XE Software", "vendor": "Cisco", "versions": [ { "status": "affected", "version": "16.4.1" }, { "status": "affected", "version": "16.4.2" }, { "status": "affected", "version": "16.4.3" }, { "status": "affected", "version": "16.5.1" }, { "status": "affected", "version": "16.5.1a" }, { "status": "affected", "version": "16.5.1b" }, { "status": "affected", "version": "16.5.2" }, { "status": "affected", "version": "16.5.3" }, { "status": "affected", "version": "16.6.1" }, { "status": "affected", "version": "16.6.2" }, { "status": "affected", "version": "16.6.3" }, { "status": "affected", "version": "16.6.4" }, { "status": "affected", "version": "16.6.5" }, { "status": "affected", "version": "16.6.4a" }, { "status": "affected", "version": "16.6.5a" }, { "status": "affected", "version": "16.6.6" }, { "status": "affected", "version": "16.6.7" }, { "status": "affected", "version": "16.6.8" }, { "status": "affected", "version": "16.6.9" }, { "status": "affected", "version": "16.6.10" }, { "status": "affected", "version": "16.7.1" }, { "status": "affected", "version": "16.7.1a" }, { "status": "affected", "version": "16.7.1b" }, { "status": "affected", "version": "16.7.2" }, { "status": "affected", "version": "16.7.3" }, { "status": "affected", "version": "16.7.4" }, { "status": "affected", "version": "16.8.1" }, { "status": "affected", "version": "16.8.1a" }, { "status": "affected", "version": "16.8.1b" }, { "status": "affected", "version": "16.8.1s" }, { "status": "affected", "version": "16.8.1c" }, { "status": "affected", "version": "16.8.1d" }, { "status": "affected", "version": "16.8.2" }, { "status": "affected", "version": "16.8.1e" }, { "status": "affected", "version": "16.8.3" }, { "status": "affected", "version": "16.9.1" }, { "status": "affected", "version": "16.9.2" }, { "status": "affected", "version": "16.9.1a" }, { "status": "affected", "version": "16.9.1b" }, { "status": "affected", "version": "16.9.1s" }, { "status": "affected", "version": "16.9.3" }, { "status": "affected", "version": "16.9.4" }, { "status": "affected", "version": "16.9.3a" }, { "status": "affected", "version": "16.9.5" }, { "status": "affected", "version": "16.9.5f" }, { "status": "affected", "version": "16.9.6" }, { "status": "affected", "version": "16.9.7" }, { "status": "affected", "version": "16.9.8" }, { "status": "affected", "version": "16.10.1" }, { "status": "affected", "version": "16.10.1a" }, { "status": "affected", "version": "16.10.1b" }, { "status": "affected", "version": "16.10.1s" }, { "status": "affected", "version": "16.10.1c" }, { "status": "affected", "version": "16.10.1e" }, { "status": "affected", "version": "16.10.1d" }, { "status": "affected", "version": "16.10.2" }, { "status": "affected", "version": "16.10.1f" }, { "status": "affected", "version": "16.10.1g" }, { "status": "affected", "version": "16.10.3" }, { "status": "affected", "version": "16.11.1" }, { "status": "affected", "version": "16.11.1a" }, { "status": "affected", "version": "16.11.1b" }, { "status": "affected", "version": "16.11.2" }, { "status": "affected", "version": "16.11.1s" }, { "status": "affected", "version": "16.12.1" }, { "status": "affected", "version": "16.12.1s" }, { "status": "affected", "version": "16.12.1a" }, { "status": "affected", "version": "16.12.1c" }, { "status": "affected", "version": "16.12.1w" }, { "status": "affected", "version": "16.12.2" }, { "status": "affected", "version": "16.12.1y" }, { "status": "affected", "version": "16.12.2a" }, { "status": "affected", "version": "16.12.3" }, { "status": "affected", "version": "16.12.8" }, { "status": "affected", "version": "16.12.2s" }, { "status": "affected", "version": "16.12.1x" }, { "status": "affected", "version": "16.12.1t" }, { "status": "affected", "version": "16.12.4" }, { "status": "affected", "version": "16.12.3s" }, { "status": "affected", "version": "16.12.3a" }, { "status": "affected", "version": "16.12.4a" }, { "status": "affected", "version": "16.12.5" }, { "status": "affected", "version": "16.12.6" }, { "status": "affected", "version": "16.12.1z1" }, { "status": "affected", "version": "16.12.5a" }, { "status": "affected", "version": "16.12.5b" }, { "status": "affected", "version": "16.12.1z2" }, { "status": "affected", "version": "16.12.6a" }, { "status": "affected", "version": "16.12.7" }, { "status": "affected", "version": "16.12.9" }, { "status": "affected", "version": "16.12.10" }, { "status": "affected", "version": "16.12.10a" }, { "status": "affected", "version": "16.12.11" }, { "status": "affected", "version": "16.12.12" }, { "status": "affected", "version": "17.1.1" }, { "status": "affected", "version": "17.1.1a" }, { "status": "affected", "version": "17.1.1s" }, { "status": "affected", "version": "17.1.1t" }, { "status": "affected", "version": "17.1.3" }, { "status": "affected", "version": "17.2.1" }, { "status": "affected", "version": "17.2.1r" }, { "status": "affected", "version": "17.2.1a" }, { "status": "affected", "version": "17.2.1v" }, { "status": "affected", "version": "17.2.2" }, { "status": "affected", "version": "17.2.3" }, { "status": "affected", "version": "17.3.1" }, { "status": "affected", "version": "17.3.2" }, { "status": "affected", "version": "17.3.3" }, { "status": "affected", "version": "17.3.1a" }, { "status": "affected", "version": "17.3.1w" }, { "status": "affected", "version": "17.3.2a" }, { "status": "affected", "version": "17.3.1x" }, { "status": "affected", "version": "17.3.1z" }, { "status": "affected", "version": "17.3.4" }, { "status": "affected", "version": "17.3.5" }, { "status": "affected", "version": "17.3.4a" }, { "status": "affected", "version": "17.3.6" }, { "status": "affected", "version": "17.3.4b" }, { "status": "affected", "version": "17.3.4c" }, { "status": "affected", "version": "17.3.5a" }, { "status": "affected", "version": "17.3.5b" }, { "status": "affected", "version": "17.3.7" }, { "status": "affected", "version": "17.3.8" }, { "status": "affected", "version": "17.3.8a" }, { "status": "affected", "version": "17.4.1" }, { "status": "affected", "version": "17.4.2" }, { "status": "affected", "version": "17.4.1a" }, { "status": "affected", "version": "17.4.1b" }, { "status": "affected", "version": "17.4.2a" }, { "status": "affected", "version": "17.5.1" }, { "status": "affected", "version": "17.5.1a" }, { "status": "affected", "version": "17.6.1" }, { "status": "affected", "version": "17.6.2" }, { "status": "affected", "version": "17.6.1w" }, { "status": "affected", "version": "17.6.1a" }, { "status": "affected", "version": "17.6.1x" }, { "status": "affected", "version": "17.6.3" }, { "status": "affected", "version": "17.6.1y" }, { "status": "affected", "version": "17.6.1z" }, { "status": "affected", "version": "17.6.3a" }, { "status": "affected", "version": "17.6.4" }, { "status": "affected", "version": "17.6.1z1" }, { "status": "affected", "version": "17.6.5" }, { "status": "affected", "version": "17.6.6" }, { "status": "affected", "version": "17.6.6a" }, { "status": "affected", "version": "17.6.5a" }, { "status": "affected", "version": "17.6.7" }, { "status": "affected", "version": "17.6.8" }, { "status": "affected", "version": "17.6.8a" }, { "status": "affected", "version": "17.7.1" }, { "status": "affected", "version": "17.7.1a" }, { "status": "affected", "version": "17.7.1b" }, { "status": "affected", "version": "17.7.2" }, { "status": "affected", "version": "17.10.1" }, { "status": "affected", "version": "17.10.1a" }, { "status": "affected", "version": "17.10.1b" }, { "status": "affected", "version": "17.8.1" }, { "status": "affected", "version": "17.8.1a" }, { "status": "affected", "version": "17.9.1" }, { "status": "affected", "version": "17.9.1w" }, { "status": "affected", "version": "17.9.2" }, { "status": "affected", "version": "17.9.1a" }, { "status": "affected", "version": "17.9.1x" }, { "status": "affected", "version": "17.9.1y" }, { "status": "affected", "version": "17.9.3" }, { "status": "affected", "version": "17.9.2a" }, { "status": "affected", "version": "17.9.1x1" }, { "status": "affected", "version": "17.9.3a" }, { "status": "affected", "version": "17.9.4" }, { "status": "affected", "version": "17.9.1y1" }, { "status": "affected", "version": "17.9.5" }, { "status": "affected", "version": "17.9.4a" }, { "status": "affected", "version": "17.9.5a" }, { "status": "affected", "version": "17.9.5b" }, { "status": "affected", "version": "17.9.5e" }, { "status": "affected", "version": "17.9.5f" }, { "status": "affected", "version": "17.11.1" }, { "status": "affected", "version": "17.11.1a" }, { "status": "affected", "version": "17.12.1" }, { "status": "affected", "version": "17.12.1w" }, { "status": "affected", "version": "17.12.1a" }, { "status": "affected", "version": "17.12.1x" }, { "status": "affected", "version": "17.12.2" }, { "status": "affected", "version": "17.12.3" }, { "status": "affected", "version": "17.12.2a" }, { "status": "affected", "version": "17.12.1y" }, { "status": "affected", "version": "17.12.1z" }, { "status": "affected", "version": "17.12.3a" }, { "status": "affected", "version": "17.12.1z1" }, { "status": "affected", "version": "17.13.1" }, { "status": "affected", "version": "17.13.1a" }, { "status": "affected", "version": "17.14.1" }, { "status": "affected", "version": "17.14.1a" }, { "status": "affected", "version": "17.11.99SW" } ] } ], "descriptions": [ { "lang": "en", "value": "A vulnerability in the Wireless Network Control daemon (wncd) of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, adjacent wireless attacker to cause a denial of service (DoS) condition.\r\n\r This vulnerability is due to improper memory management. An attacker could exploit this vulnerability by sending a series of IPv6 network requests from an associated wireless IPv6 client to an affected device. To associate a client to a device, an attacker may first need to authenticate to the network, or associate freely in the case of a configured open network. A successful exploit could allow the attacker to cause the wncd process to consume available memory and eventually cause the device to stop responding, resulting in a DoS condition." } ], "exploits": [ { "lang": "en", "value": "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." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1" }, "format": "cvssV3_1" } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-789", "description": "Uncontrolled Memory Allocation", "lang": "en", "type": "cwe" } ] } ], "providerMetadata": { "dateUpdated": "2025-05-07T17:36:49.207Z", "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco" }, "references": [ { "name": "cisco-sa-wlc-wncd-p6Gvt6HL", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-wncd-p6Gvt6HL" } ], "source": { "advisory": "cisco-sa-wlc-wncd-p6Gvt6HL", "defects": [ "CSCwj16556" ], "discovery": "EXTERNAL" } } }, "cveMetadata": { "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2025-20140", "datePublished": "2025-05-07T17:36:49.207Z", "dateReserved": "2024-10-10T19:15:13.214Z", "dateUpdated": "2025-05-07T17:51:42.769Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
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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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