KEV · Actively exploited
CVE-2021-36955
HIGH 7.8
KEV
Windows Common Log File System Driver Elevation of Privilege Vulnerability
Attack vector : Local
No user interaction
Show raw CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
4.04%
above median
percentile 89.7%
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 Server 2022 Fixed in 10.0.20348.230
- Windows Server 2019 Fixed in 10.0.17763.2183
- Windows Server 2016 Fixed in 10.0.14393.4651
- Windows 10 21H1 · 2021-H1 Fixed in 10.0.19043.1237
- Windows 10 20H2 · 2020-H2 Fixed in 10.0.19042.1237
- Windows 10 2004 · 2020-04 Fixed in 10.0.19041.1237
- Windows 10 1909 · 2019-09 Fixed in 10.0.18363.1801
- Windows 10 1809 · 2018-09 Fixed in 10.0.17763.2183
- Windows 10 1607 · 2016-07 Fixed in 10.0.14393.4651