CVE-2021-31955
Windows Kernel Information Disclosure Vulnerability
- Score
- CVSS 3.1 5.5 Medium
- Status
- Analyzed - secure@microsoft.com
- Published
- 2021-06-08
- Last modified
- 2025-10-21
- Known exploited (CISA KEV)
- since 2021-11-03, action due 2021-11-17: Apply updates per vendor instructions.
- Weaknesses
- CWE-497
Affected products
- Windows 10 1809 (Microsoft)
- Windows 10 1909 (Microsoft)
- Windows 10 2004 (Microsoft)
- Windows 10 20H2 (Microsoft)
- Windows 10 20h2 (Microsoft)
- Windows 10 21H1 (Microsoft)
- Windows 10 21h1 (Microsoft)
- Windows Server 2004 (Microsoft)
- Windows Server 2019 (Microsoft)
- Windows Server 20H2 (Microsoft)
- Windows Server 20h2 (Microsoft)
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31955
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31955
