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CVE Record
[ HIGH ]CVE-2021-43226

Microsoft Windows Privilege Escalation Vulnerability

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

cat cve-2021-43226.json
Vendor
Microsoft
Product
Windows
CVSS
7.8
EPSS (exploit probability)
3.1%
Status
kev
CISA patch-by (BOD 22-01)
Published

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

Added to CISA’s Known Exploited Vulnerabilities catalog on 2025-10-06. Required action per CISA: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Due date: 2025-10-27.

This is an auto-synced KEV catalog record pending a full 0dayNews write-up — see CISA’s KEV catalog and the NVD record linked above for primary sources.