Actively exploited in the wild
Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability
Microsoft - Windows · Listed in the CISA KEV since 2021-11-03. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2021-36955
HighCVSS 7.8KEVExploitation Probability (EPSS)
High risk90th percentile - higher than 90% of all known CVEs
Summary
Elevation of privilege vulnerability in Windows Common Log File System Driver. Could be exploited to gain elevated privileges.
Risk Assessment
Risk of privilege escalation and system takeover.
Recommendation
Apply Windows security updates.
Other vulnerabilities in Windows Common Log File System Driver
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Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
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Improper input validation in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
- CVE-2025-32701HighActively exploited
Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
- CVE-2025-29824HighActively exploited
Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
- CVE-2024-49138HighActively exploited
Windows Common Log File System Driver Elevation of Privilege Vulnerability. Technical details were not provided in the description.
- CVE-2023-36900High
A vulnerability in the Windows Common Log File System Driver allows for elevation of privilege. An attacker can exploit this flaw to gain higher privileges in the system.
- CVE-2023-28252HighActively exploited
A vulnerability in the Windows Common Log File System (CLFS) driver allows elevation of privilege. The flaw enables a local attacker to gain higher privileges on the system.
- CVE-2023-23376HighActively exploited
Windows Common Log File System Driver Elevation of Privilege Vulnerability.
- CVE-2022-37969HighActively exploited
Windows Common Log File System Driver Elevation of Privilege Vulnerability. The NVD description provides no technical details beyond the classification.
- CVE-2022-24521HighActively exploited
A privilege elevation vulnerability in the Windows Common Log File System Driver. It is exploited locally by an authenticated user.
Original NVD description (English source)
Windows Common Log File System Driver Elevation of Privilege Vulnerability