CVE-2021-36955
Windows Common Log File System Driver Elevation of Privilege Vulnerability
KEV RANSOMWAREHIGH 7.8EPSS 4.1%
Windows Common Log File System Driver Elevation of Privilege Vulnerability
- Affected
- Microsoft · Windows 10 Version 1507 · Windows 10 Version 1607 · Windows 10 Version 1809 · Windows 10 Version 1909 · Windows 10 Version 2004 · Windows 10 Version 20H2
- CVSS v3.1 NVD
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 4.6 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P - EPSS
- 4.07% chance of exploitation in the next 30 days, 91st percentile
- CISA KEV
- added 2021-11-03, used in ransomware campaigns
- Published
- 2021-09-15
- Updated
- 2026-08-10
Proof-of-concept exploits (1)
- JiaJinRong12138/CVE-2021-36955-EXP13★ · 2023-08-15
Exploit collections (1)
- cve-2021-36955helloexp/0day
Security advisories
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36955
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36955