CVE-2023-21691

Microsoft Protected Extensible Authentication Protocol (PEAP) Information Disclosure Vulnerability

Score

CVSS 3.1 7.5 High

Status

Modified - secure@microsoft.com

Published

2023-02-14

Last modified

2026-08-19

Weaknesses

CWE-125

Affected products

• Windows 10 1507 (Microsoft)
• Windows 10 1607 (Microsoft)
• Windows 10 1809 (Microsoft)
• Windows 10 20H2 (Microsoft)
• Windows 10 20h2 (Microsoft)
• Windows 10 21H2 (Microsoft)
• Windows 10 21h2 (Microsoft)
• Windows 10 22H2 (Microsoft)
• Windows 10 22h2 (Microsoft)
• Windows 11 21H2 (Microsoft)
• Windows 11 21h2 (Microsoft)
• Windows 11 22H2 (Microsoft)
• Windows 11 22h2 (Microsoft)
• Windows Server 2008 (Microsoft)
• Windows Server 2008 R2 (Microsoft)
• Windows Server 2008 Sp2 (Microsoft)
• Windows Server 2012 (Microsoft)
• Windows Server 2012 R2 (Microsoft)
• Windows Server 2016 (Microsoft)
• Windows Server 2019 (Microsoft)
• Windows Server 2022 (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21691