CVE-2021-43226CISA KEVEPSS p85.9%

CVE-2021-43226Microsoft Windows Privilege Escalation Vulnerability

Microsoft / Windows

Description

Microsoft Windows Common Log File System Driver contains a privilege escalation vulnerability that could allow a local, privileged attacker to bypass certain security mechanisms.

Scoring

EPSS3.07% probability of exploitation · percentile 85.9% · 2026-06-18T12:00:27Z

CISA KEV entry

Added to KEV: 2025-10-06

(incoming)1

TypeTargetConfidenceTier
KEVEntryMicrosoft Windows Privilege Escalation Vulnerabilitykev-cve-2021-432260%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 Privilege Escalation Vulnerability
CVE
CVE-2023-23376
CVE
CVE-2026-40397
CVE
Microsoft Windows Privilege Common Log File System (CLFS) Escalation Vulnerability
CVE
Microsoft Windows Common Log File System (CLFS) Driver Use-After-Free Vulnerability
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.