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CVE-2021-26423 (GCVE-0-2021-26423)
Vulnerability from cvelistv5
Published
2021-08-12 18:11
Modified
2024-08-03 20:26
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Denial of Service
Summary
.NET Core and Visual Studio Denial of Service Vulnerability
References
| ► | URL | Tags | |
|---|---|---|---|
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ► | Microsoft | Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) |
Version: 15.9.0 < 15.9.38 cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:* |
|||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||
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rhsa-2021:3142
Vulnerability from csaf_redhat
Published
2021-08-11 18:47
Modified
2025-08-04 12:12
Summary
Red Hat Security Advisory: .NET Core 3.1 security and bugfix update
Notes
Topic
An update for .NET Core 3.1 is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.
New versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 3.1.118 and .NET Runtime 3.1.18.
Security Fix(es):
* dotnet: ASP.NET Core WebSocket frame processing DoS (CVE-2021-26423)
* dotnet: Dump file created world-readable (CVE-2021-34485)
* dotnet: ASP.NET Core JWT token logging (CVE-2021-34532)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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rhsa-2021:3143
Vulnerability from csaf_redhat
Published
2021-08-11 18:47
Modified
2025-08-04 12:12
Summary
Red Hat Security Advisory: .NET Core 3.1 on RHEL 7 security and bugfix update
Notes
Topic
An update for .NET Core 3.1 is now available for .NET Core on Red Hat Enterprise Linux.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.
New versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 3.1.118 and .NET Runtime 3.1.18.
Security Fix(es):
* dotnet: ASP.NET Core WebSocket frame processing DoS (CVE-2021-26423)
* dotnet: Dump file created world-readable (CVE-2021-34485)
* dotnet: ASP.NET Core JWT token logging (CVE-2021-34532)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"text": ".NET Core and Visual Studio Information Disclosure Vulnerability",
"title": "Vulnerability description"
},
{
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"text": "dotnet: Dump file created world-readable",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"date": "2021-08-11T18:47:02+00:00",
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"details": "Low"
}
],
"title": "dotnet: Dump file created world-readable"
},
{
"cve": "CVE-2021-34532",
"cwe": {
"id": "CWE-532",
"name": "Insertion of Sensitive Information into Log File"
},
"discovery_date": "2021-08-03T00:00:00+00:00",
"ids": [
{
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"text": "1990300"
}
],
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{
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"text": "ASP.NET Core and Visual Studio Information Disclosure Vulnerability",
"title": "Vulnerability description"
},
{
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"text": "dotnet: ASP.NET Core JWT token logging",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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},
{
"category": "external",
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{
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"url": "https://www.cve.org/CVERecord?id=CVE-2021-34532"
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{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-34532",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34532"
},
{
"category": "external",
"summary": "https://github.com/dotnet/announcements/issues/195",
"url": "https://github.com/dotnet/announcements/issues/195"
},
{
"category": "external",
"summary": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34532",
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}
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{
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"date": "2021-08-11T18:47:02+00:00",
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"title": "dotnet: ASP.NET Core JWT token logging"
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}
rhsa-2021:3147
Vulnerability from csaf_redhat
Published
2021-08-12 06:49
Modified
2025-08-04 12:12
Summary
Red Hat Security Advisory: .NET 5.0 on RHEL 7 security and bugfix update
Notes
Topic
An update for rh-dotnet50-dotnet is now available for .NET Core on Red Hat Enterprise Linux.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.
New versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 5.0.206 and .NET Runtime 5.0.9.
Security Fix(es):
* dotnet: ASP.NET Core WebSocket frame processing DoS (CVE-2021-26423)
* dotnet: Dump file created world-readable (CVE-2021-34485)
* dotnet: ASP.NET Core JWT token logging (CVE-2021-34532)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
{
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"title": "Vulnerability summary"
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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rhsa-2021:3148
Vulnerability from csaf_redhat
Published
2021-08-12 06:57
Modified
2025-08-04 12:12
Summary
Red Hat Security Advisory: .NET 5.0 security and bugfix update
Notes
Topic
An update for .NET 5.0 is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.
New versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 5.0.206 and .NET Runtime 5.0.9.
Security Fix(es):
* dotnet: ASP.NET Core WebSocket frame processing DoS (CVE-2021-26423)
* dotnet: Dump file created world-readable (CVE-2021-34485)
* dotnet: ASP.NET Core JWT token logging (CVE-2021-34532)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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ghsa-rh58-r7jh-xhx3
Vulnerability from github
Published
2022-10-25 17:33
Modified
2022-10-25 17:33
Severity ?
VLAI Severity ?
Summary
.NET Core Elevation of Privilege Vulnerability
Details
Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 5.0 and .NET Core 3.1. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.
A denial of service vulnerability exists in .NET 5.0, .NET Core 3.1 and .NET Core 2.1 where .NET (Core) server applications providing WebSocket endpoints could be tricked into endlessly looping while trying to read a single WebSocket frame.
Patches
-
If you're using .NET 5.0, you should download and install Runtime 5.0.9 or SDK 5.0.206 (for Visual Studio 2019 v16.8) or SDK 5.0.303 (for Visual Studio 2019 V16.10) from https://dotnet.microsoft.com/download/dotnet-core/5.0.
-
If you're using .NET Core 3.1, you should download and install Runtime 3.1.18 or SDK 3.1.118 (for Visual Studio 2019 v16.4) or 3.1.412 (for Visual Studio 2019 v16.7 or later) from https://dotnet.microsoft.com/download/dotnet-core/3.1.
-
If you're using .NET Core 2.1, you should download and install Runtime 2.1.29 or SDK 2.1.525 (for Visual Studio 2019 v15.9) or 2.1.817 from https://dotnet.microsoft.com/download/dotnet-core/2.1.
Other Details
- Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/194
- An Issue for this can be found at https://github.com/dotnet/runtime/issues/57175
- MSRC details for this can be found at https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26423
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"severity": "HIGH"
},
"details": "Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 5.0 and .NET Core 3.1. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nA denial of service vulnerability exists in .NET 5.0, .NET Core 3.1 and .NET Core 2.1 where .NET (Core) server applications providing WebSocket endpoints could be tricked into endlessly looping while trying to read a single WebSocket frame. \n\n### Patches\n\n* If you\u0027re using .NET 5.0, you should download and install Runtime 5.0.9 or SDK 5.0.206 (for Visual Studio 2019 v16.8) or SDK 5.0.303 (for Visual Studio 2019 V16.10) from https://dotnet.microsoft.com/download/dotnet-core/5.0.\n\n* If you\u0027re using .NET Core 3.1, you should download and install Runtime 3.1.18 or SDK 3.1.118 (for Visual Studio 2019 v16.4) or 3.1.412 (for Visual Studio 2019 v16.7 or later) from https://dotnet.microsoft.com/download/dotnet-core/3.1.\n\n* If you\u0027re using .NET Core 2.1, you should download and install Runtime 2.1.29 or SDK 2.1.525 (for Visual Studio 2019 v15.9) or 2.1.817 from https://dotnet.microsoft.com/download/dotnet-core/2.1.\n\n\n#### Other Details\n\n- Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/194\n- An Issue for this can be found at https://github.com/dotnet/runtime/issues/57175\n- MSRC details for this can be found at https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26423\n",
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},
{
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"type": "CVSS_V3"
}
],
"summary": ".NET Core Elevation of Privilege Vulnerability"
}
fkie_cve-2021-26423
Vulnerability from fkie_nvd
Published
2021-08-12 18:15
Modified
2024-11-21 05:56
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
.NET Core and Visual Studio Denial of Service Vulnerability
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| microsoft | .net | * | |
| microsoft | .net_core | * | |
| microsoft | .net_core | * | |
| microsoft | powershell_core | * | |
| microsoft | powershell_core | * | |
| microsoft | visual_studio_2017 | * | |
| microsoft | visual_studio_2019 | * | |
| microsoft | visual_studio_2019 | 8.10 |
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gsd-2021-26423
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
.NET Core and Visual Studio Denial of Service Vulnerability
Aliases
Aliases
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"https://access.redhat.com/errata/RHSA-2021:3147",
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"https://access.redhat.com/errata/RHSA-2021:3142",
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"https://linux.oracle.com/cve/CVE-2021-26423.html"
]
},
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"remediation": "unknown",
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"package_slug": "nuget/Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-arm64",
"pubdate": "2022-10-25",
"solution": "Upgrade to version 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "5b6f37fc-8fb0-4109-bb52-4302ab5a5a75"
},
{
"affected_range": "[5.0.0,5.0.9)",
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"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
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"5.0.9"
],
"identifier": "CVE-2021-26423",
"identifiers": [
"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
],
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"package_slug": "nuget/Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-x64",
"pubdate": "2022-10-25",
"solution": "Upgrade to version 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "2915cb41-bb5c-4e03-9383-282a0e3496d9"
},
{
"affected_range": "[5.0.0,5.0.9)",
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"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
"fixed_versions": [
"5.0.9"
],
"identifier": "CVE-2021-26423",
"identifiers": [
"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
],
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"package_slug": "nuget/Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.osx-x64",
"pubdate": "2022-10-25",
"solution": "Upgrade to version 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "5f930407-2311-4724-8d10-0d465617396e"
},
{
"affected_range": "[5.0.0,5.0.9)",
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"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
"fixed_versions": [
"5.0.9"
],
"identifier": "CVE-2021-26423",
"identifiers": [
"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
],
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"package_slug": "nuget/Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-arm64",
"pubdate": "2022-10-25",
"solution": "Upgrade to version 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "b3c90e84-6a86-4ca9-b7cc-6cb3340dd266"
},
{
"affected_range": "[5.0.0,5.0.9)",
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"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
"fixed_versions": [
"5.0.9"
],
"identifier": "CVE-2021-26423",
"identifiers": [
"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
],
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"package_slug": "nuget/Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-x64",
"pubdate": "2022-10-25",
"solution": "Upgrade to version 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "757d4c27-3ff8-4cfe-9da2-374ddc95e043"
},
{
"affected_range": "[5.0.0,5.0.9)",
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"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
"fixed_versions": [
"5.0.9"
],
"identifier": "CVE-2021-26423",
"identifiers": [
"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
],
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"package_slug": "nuget/Microsoft.NETCore.App.Runtime.Mono.LLVM.osx-x64",
"pubdate": "2022-10-25",
"solution": "Upgrade to version 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "c1b7546e-5f45-461b-82ee-070d2d6c6646"
},
{
"affected_range": "[5.0.0,5.0.9)",
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"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
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"5.0.9"
],
"identifier": "CVE-2021-26423",
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"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
],
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"package_slug": "nuget/Microsoft.NETCore.App.Runtime.Mono.linux-arm",
"pubdate": "2022-10-25",
"solution": "Upgrade to version 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "ab0ad3b1-2f43-4ba1-b7b1-11d229d9098e"
},
{
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"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
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"5.0.9"
],
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"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
],
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"package_slug": "nuget/Microsoft.NETCore.App.Runtime.Mono.linux-arm64",
"pubdate": "2022-10-25",
"solution": "Upgrade to version 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "2433c001-c0b3-4185-a7b7-8a657262ca32"
},
{
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"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
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"5.0.9"
],
"identifier": "CVE-2021-26423",
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"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
],
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"package_slug": "nuget/Microsoft.NETCore.App.Runtime.Mono.linux-musl-x64",
"pubdate": "2022-10-25",
"solution": "Upgrade to version 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "9f65ae68-9d58-4060-b64d-d47c2dc23de5"
},
{
"affected_range": "[5.0.0,5.0.9)",
"affected_versions": "All versions starting from 5.0.0 before 5.0.9",
"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
"fixed_versions": [
"5.0.9"
],
"identifier": "CVE-2021-26423",
"identifiers": [
"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
],
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"package_slug": "nuget/Microsoft.NETCore.App.Runtime.Mono.linux-x64",
"pubdate": "2022-10-25",
"solution": "Upgrade to version 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "ae3f5ed9-836c-437e-ae34-9387c8a8f668"
},
{
"affected_range": "[5.0.0,5.0.9)",
"affected_versions": "All versions starting from 5.0.0 before 5.0.9",
"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
"fixed_versions": [
"5.0.9"
],
"identifier": "CVE-2021-26423",
"identifiers": [
"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
],
"not_impacted": "All versions before 5.0.0, all versions starting from 5.0.9",
"package_slug": "nuget/Microsoft.NETCore.App.Runtime.Mono.osx-x64",
"pubdate": "2022-10-25",
"solution": "Upgrade to version 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "721136f5-976e-4d61-92be-fc4844558c17"
},
{
"affected_range": "[3.1.0,3.1.18),[5.0.0,5.0.9)",
"affected_versions": "All versions starting from 3.1.0 before 3.1.18, all versions starting from 5.0.0 before 5.0.9",
"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
"fixed_versions": [
"3.1.18",
"5.0.9"
],
"identifier": "CVE-2021-26423",
"identifiers": [
"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
],
"not_impacted": "All versions before 3.1.0, all versions starting from 3.1.18 before 5.0.0, all versions starting from 5.0.9",
"package_slug": "nuget/Microsoft.NETCore.App.Runtime.linux-arm",
"pubdate": "2022-10-25",
"solution": "Upgrade to versions 3.1.18, 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "c3d27929-8baf-4916-ba47-fd69e223aa4a"
},
{
"affected_range": "[3.1.0,3.1.18),[5.0.0,5.0.9)",
"affected_versions": "All versions starting from 3.1.0 before 3.1.18, all versions starting from 5.0.0 before 5.0.9",
"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
"fixed_versions": [
"3.1.18",
"5.0.9"
],
"identifier": "CVE-2021-26423",
"identifiers": [
"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
],
"not_impacted": "All versions before 3.1.0, all versions starting from 3.1.18 before 5.0.0, all versions starting from 5.0.9",
"package_slug": "nuget/Microsoft.NETCore.App.Runtime.linux-arm64",
"pubdate": "2022-10-25",
"solution": "Upgrade to versions 3.1.18, 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "b99df87b-3a55-41c2-a34f-e65b63dce7a8"
},
{
"affected_range": "[5.0.0,5.0.9)",
"affected_versions": "All versions starting from 5.0.0 before 5.0.9",
"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
"fixed_versions": [
"5.0.9"
],
"identifier": "CVE-2021-26423",
"identifiers": [
"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
],
"not_impacted": "All versions before 5.0.0, all versions starting from 5.0.9",
"package_slug": "nuget/Microsoft.NETCore.App.Runtime.linux-musl-arm",
"pubdate": "2022-10-25",
"solution": "Upgrade to version 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "b7fd4ccb-54f3-4780-a05c-5b6a9b5792fb"
},
{
"affected_range": "[3.1.0,3.1.18),[5.0.0,5.0.9)",
"affected_versions": "All versions starting from 3.1.0 before 3.1.18, all versions starting from 5.0.0 before 5.0.9",
"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
"fixed_versions": [
"3.1.18",
"5.0.9"
],
"identifier": "CVE-2021-26423",
"identifiers": [
"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
],
"not_impacted": "All versions before 3.1.0, all versions starting from 3.1.18 before 5.0.0, all versions starting from 5.0.9",
"package_slug": "nuget/Microsoft.NETCore.App.Runtime.linux-musl-arm64",
"pubdate": "2022-10-25",
"solution": "Upgrade to versions 3.1.18, 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "b32d0645-c96d-4a70-a997-7c807e0fd649"
},
{
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"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"CWE-1035",
"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
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"3.1.18",
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],
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"GHSA-rh58-r7jh-xhx3",
"CVE-2021-26423"
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"package_slug": "nuget/Microsoft.NETCore.App.Runtime.linux-musl-x64",
"pubdate": "2022-10-25",
"solution": "Upgrade to versions 3.1.18, 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
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"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
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{
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"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
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"https://github.com/dotnet/announcements/issues/194",
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],
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"date": "2022-10-25",
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],
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"package_slug": "nuget/Microsoft.NETCore.App.Runtime.rhel.6-x64",
"pubdate": "2022-10-25",
"solution": "Upgrade to version 3.1.18 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
"https://github.com/advisories/GHSA-rh58-r7jh-xhx3"
],
"uuid": "f461e876-45c7-4bf8-b635-3ee944682b61"
},
{
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],
"date": "2022-10-25",
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],
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],
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"pubdate": "2022-10-25",
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"title": ".NET Core Elevation of Privilege Vulnerability",
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"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
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{
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"pubdate": "2022-10-25",
"solution": "Upgrade to versions 3.1.18, 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
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{
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"CWE-937"
],
"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
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"3.1.18",
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"package_slug": "nuget/Microsoft.NETCore.App.Runtime.win-x64",
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"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
"https://github.com/dotnet/runtime/security/advisories/GHSA-rh58-r7jh-xhx3",
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"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423",
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"uuid": "38bf0ab2-e4cf-405e-a702-a878d162c0ca"
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{
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"date": "2022-10-25",
"description": ".NET Core and Visual Studio Denial of Service Vulnerability",
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"package_slug": "nuget/Microsoft.NETCore.App.Runtime.win-x86",
"pubdate": "2022-10-25",
"solution": "Upgrade to versions 3.1.18, 5.0.9 or above.",
"title": ".NET Core Elevation of Privilege Vulnerability",
"urls": [
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"https://github.com/dotnet/announcements/issues/194",
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]
},
"nvd.nist.gov": {
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{
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{
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}
],
"id": "CVE-2021-26423",
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{
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},
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],
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{
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},
"published": "2021-08-12T18:15:08.537",
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"tags": [
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],
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423"
}
],
"sourceIdentifier": "secure@microsoft.com",
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"weaknesses": [
{
"description": [
{
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"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
}
}
}
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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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