[ CVE-2021-42278 · Published 10 Nov 2021 ]
Microsoft Active Directory Domain Services Privilege Escalation Vulnerability
Exploited · CISA KEV CVSS 7.5
EPSS 73%Fix available
[ Why it matters ]Priority signals
- Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-04-11
- Known to be used in ransomware campaigns
- EPSS: 73% chance of exploitation in the next 30 days (higher than 99% of CVEs)
[ Description ]Official description
Active Directory Domain Services Elevation of Privilege Vulnerability
CISA: Microsoft Active Directory Domain Services contains an unspecified vulnerability that allows for privilege escalation.
[ Fixes ]Fixes and patches
CISA required action (US federal deadline 2 May 2022): Apply updates per vendor instructions.
- Patch on msrc.microsoft.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
- Patch on portal.msrc.microsoft.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
[ References ]References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42278PatchVendor Advisory
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42278PatchVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource