[ CVE-2021-31956 · Published 8 Jun 2021 ]
Microsoft Windows NTFS Privilege Escalation Vulnerability
Exploited · CISA KEV CVSS 7.8
EPSS 22%Fix available
[ Why it matters ]Priority signals
- Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2021-11-03
- EPSS: 22% chance of exploitation in the next 30 days (higher than 98% of CVEs)
[ Description ]Official description
Windows NTFS Elevation of Privilege Vulnerability
CISA: Microsoft Windows New Technology File System (NTFS) contains an unspecified vulnerability that allows attackers to escalate privileges via a specially crafted application.
[ Fixes ]Fixes and patches
CISA required action (US federal deadline 17 Nov 2021): Apply updates per vendor instructions.
- Patch on portal.msrc.microsoft.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
[ References ]References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31956PatchVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource