CVE-2023-28252
Published: April 11, 2023
Official Description
Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.
CISA KEV Advisory
Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability
Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.
Apply updates per vendor instructions.
Risk Analysis
This vulnerability in the Microsoft Windows Common Log File System (CLFS) driver allows an attacker to elevate their privileges on a compromised system. Its inclusion in the KEV catalog and a high EPSS score indicate a significant and confirmed risk of exploitation.
This vulnerability is actively being exploited in the wild and is listed in CISA's KEV catalog, confirming its real-world exploitation.
Apply the latest security updates from Microsoft to address this privilege escalation vulnerability. Regularly patch and update Windows systems to mitigate known exploitation vectors.
Technical Analysis
CVE-2023-28252 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2023-28252 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-28252 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1