CVE-2023-21691
Microsoft Protected Extensible Authentication Protocol (PEAP) Information Disclosure Vulnerability
CVE-2023-21691 is fixed in 35 products on 1 platform, first by KB5022838, released February 14, 2023. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0144
73rd percentile
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1607 for 32-bit Systems | 14393.5717 | KB5022838 | Feb 14, 2023 |
| Windows 10 Version 1607 for x64-based Systems | 14393.5717 | KB5022838 | Feb 14, 2023 |
| Windows 10 Version 1809 for 32-bit Systems | 17763.4010 | KB5022840 | Feb 14, 2023 |
| Windows 10 Version 1809 for ARM64-based Systems | 17763.4010 | KB5022840 | Feb 14, 2023 |
| Windows 10 Version 1809 for x64-based Systems | 17763.4010 | KB5022840 | Feb 14, 2023 |
| Windows 10 Version 20H2 for 32-bit Systems | KB5022834 | Feb 14, 2023 | |
| Windows 10 Version 20H2 for ARM64-based Systems | KB5022834 | Feb 14, 2023 | |
| Windows 10 Version 21H2 for 32-bit Systems | KB5022834 | Feb 14, 2023 | |
| Windows 10 Version 21H2 for ARM64-based Systems | KB5022834 | Feb 14, 2023 | |
| Windows 10 Version 21H2 for x64-based Systems | KB5022834 | Feb 14, 2023 | |
| Windows 10 Version 22H2 for 32-bit Systems | KB5022834 | Feb 14, 2023 | |
| Windows 10 Version 22H2 for ARM64-based Systems | KB5022834 | Feb 14, 2023 | |
| Windows 10 Version 22H2 for x64-based Systems | KB5022834 | Feb 14, 2023 | |
| Windows 10 for 32-bit Systems | 10240.19747 | KB5022858 | Feb 14, 2023 |
| Windows 10 for x64-based Systems | 10240.19747 | KB5022858 | Feb 14, 2023 |
| Windows 11 Version 22H2 for ARM64-based Systems | 22621.1265 | KB5022845 | Feb 14, 2023 |
| Windows 11 Version 22H2 for x64-based Systems | 22621.1265 | KB5022845 | Feb 14, 2023 |
| Windows 11 version 21H2 for ARM64-based Systems | 22000.1574 | KB5022836 | Feb 14, 2023 |
| Windows 11 version 21H2 for x64-based Systems | 22000.1574 | KB5022836 | Feb 14, 2023 |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB5022874 | Feb 14, 2023 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB5022872 | Feb 14, 2023 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB5022874 | Feb 14, 2023 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB5022872 | Feb 14, 2023 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB5022893 | Feb 14, 2023 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB5022890 | Feb 14, 2023 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB5022893 | Feb 14, 2023 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB5022890 | Feb 14, 2023 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB5022893 | Feb 14, 2023 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB5022890 | Feb 14, 2023 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB5022893 | Feb 14, 2023 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB5022890 | Feb 14, 2023 | |
| Windows Server 2012 | KB5022895 | Feb 14, 2023 | |
| Windows Server 2012 | KB5022903 | Feb 14, 2023 | |
| Windows Server 2012 (Server Core installation) | KB5022895 | Feb 14, 2023 | |
| Windows Server 2012 (Server Core installation) | KB5022903 | Feb 14, 2023 | |
| Windows Server 2012 R2 | KB5022894 | Feb 14, 2023 | |
| Windows Server 2012 R2 | KB5022899 | Feb 14, 2023 | |
| Windows Server 2012 R2 (Server Core installation) | KB5022894 | Feb 14, 2023 | |
| Windows Server 2012 R2 (Server Core installation) | KB5022899 | Feb 14, 2023 | |
| Windows Server 2016 | 14393.5717 | KB5022838 | Feb 14, 2023 |
| Windows Server 2016 (Server Core installation) | 14393.5717 | KB5022838 | Feb 14, 2023 |
| Windows Server 2019 | 17763.4010 | KB5022840 | Feb 14, 2023 |
| Windows Server 2019 (Server Core installation) | 17763.4010 | KB5022840 | Feb 14, 2023 |
| Windows Server 2022 | KB5022921 | Feb 14, 2023 | |
| Windows Server 2022 | 20348.1547 | KB5022842 | Feb 14, 2023 |
| Windows Server 2022 (Server Core installation) | KB5022921 | Feb 14, 2023 | |
| Windows Server 2022 (Server Core installation) | 20348.1547 | KB5022842 | Feb 14, 2023 |
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