CVE-2021-43226
Severity not reported CISA KEVData quality: kev only.
This record comes from the CISA KEV catalog only; NVD details have not been synced yet.
Microsoft Windows Privilege Escalation Vulnerability
Vendor / product: Microsoft — Windows
Microsoft Windows Common Log File System Driver contains a privilege escalation vulnerability that could allow a local, privileged attacker to bypass certain security mechanisms.
CVSS
—
Not reported by the source
Timeline (UTC)
Published: not reported
Modified: not reported
NVD status: not reported
Last synced 2 days ago
Verified against the source API 2026-10-27 06:50 UTC
Exploitation
Listed in CISA KEV
Added 2025-10-06 · due 2025-10-27
Known ransomware use: Known
Required action (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.
Affected products
Not reported by the source (unknown — not "none").
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- No references reported.
Data sources
CISA KEV — fetched 2026-10-27 06:50 UTC · record ↗