CVE-2021-36955
Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability
Published Sep 15, 2021 · updated Aug 10, 2026 · microsoft windows 10 1507
Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.
Timeline
Detection, updates, and resolution for this record.
Sep 15, 2021 · Catalog
Detected
Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.
Nov 3, 2021 · CISA KEV
Known exploited
Apply updates per vendor instructions.
Nov 17, 2021 · CISA KEV
Remediation due
Apply updates per vendor instructions.
Aug 10, 2026 · Catalog
Updated
Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.
Required action
Apply updates per vendor instructions.
CISA due date Nov 17, 2021
Affected
- cpe microsoft/windows 10 1507version unspecified
- cpe microsoft/windows 10 1607version unspecified
- cpe microsoft/windows 10 1809version unspecified
- cpe microsoft/windows 10 1909version unspecified
- cpe microsoft/windows 10 2004version unspecified
- cpe microsoft/windows 10 20h2version unspecified
- cpe microsoft/windows 10 21h1version unspecified
- cpe microsoft/windows 7version unspecified
- vendor Microsoft Windowsversion unspecified
Sources
- CISA KEVCVE-2021-36955
Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.
cisa.gov - CVE.orgCVE-2021-36955
Official CVE identifier
cve.org - FIRST EPSSCVE-2021-36955
30-day exploitation probability 4.1%
first.org - NIST NVDCVE-2021-36955
Windows Common Log File System Driver Elevation of Privilege Vulnerability
nvd.nist.gov