CVE-2021-36955CISA KEVEPSS p90.4%

CVE-2021-36955Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability

Microsoft / Windows

Description

Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.

Scoring

CVSS 7.8 ()
VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS4.07% probability of exploitation · percentile 90.4% · 2026-10-06T12:00:23Z
Last modified2026-08-10

CISA KEV entry

Added to KEV: 2021-11-03

(incoming)1

TypeTargetConfidenceTier
KEVEntryMicrosoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerabilitykev-cve-2021-369550%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
Microsoft Windows CLFS Driver Privilege Escalation Vulnerability
CVE
Microsoft Windows Common Log File System (CLFS) Driver Use-After-Free Vulnerability
CVE
Microsoft Windows Privilege Common Log File System (CLFS) Escalation Vulnerability
CVE
Microsoft Windows Privilege Escalation Vulnerability
CVE
Microsoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow Vulnerability
CVE
CVE-2026-40397
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.