CVE-2021-43226
Act now ● On CISA KEV — actively exploited used in ransomware
Actively exploited — on the CISA KEV list.
CVSS base
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
3.1%
87.0th percentile
CISA KEV
Listed
Added 2025-10-06 · patch by 2025-10-27
Weakness / dates
—
Published 2021-12-15 · modified 2026-08-22
Description
Windows Common Log File System Driver Elevation of Privilege Vulnerability