Actively exploited · Published Apr 11, 2023 · Assigned by microsoft
CVE-2023-28252Windows Common Log File System Driver Elevation of Privilege Vulnerability
High 7.8 Exploited Ransomware
In plain English
A high-severity heap buffer overflow in Windows 10 Version 1507 from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on April 11, 2023). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 48.9% (higher than 99% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, public proof-of-concept code. Apply updates per vendor instructions.
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by May 2, 2023.
Official description
Windows Common Log File System Driver Elevation of Privilege Vulnerability
Affected products (as reported)
Weakness: CWE-122 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
References
- Windows Common Log File System Driver Elevation of Privilege Vulnerability vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-28252 government-resource
- http://packetstormsecurity.com/files/174668/Windows-Common-Log-File-System-Driver-clfs.sys-Privilege-Escalation.html x_transferred