KEV · Actively exploited
CVE-2021-36955
HIGH 7.8
KEV
Windows Common Log File System Driver Elevation of Privilege Vulnerability
EPSS
20.71%
moderate exploit risk
percentile 95.7%
CISA Known Exploited Vulnerability
- Added to KEV
- 2021-11-03
- Remediation deadline
- 2021-11-17
- Required action
- Apply updates per vendor instructions.
- Ransomware
- Yes, known ransomware campaign
OS versions that fix this CVE
This CVE is resolved by the following OS security releases. Update the OS to at least the listed version.
- Windows Fixed in Windows Server 2022 (Server Core installation) 10.0.20348.230 Windows Server 2022 10.0.20348.230 Windows Server 2019 (Server Core installation) 10.0.17763.2183 Windows Server 2019 10.0.17763.2183 Windows Server 2016 (Server Core installation) 10.0.14393.4651 Windows Server 2016 10.0.14393.4651 Windows 10 21H1 · 2021-H1 10.0.19043.1237 Windows 10 20H2 · 2020-H2 10.0.19042.1237 Windows 10 2004 · 2020-04 10.0.19041.1237 Windows 10 1909 · 2019-09 10.0.18363.1801 Windows 10 1809 · 2018-09 10.0.17763.2183 Windows 10 1607 · 2016-07 10.0.14393.4651