CVE-2025-32706KEV · OVERDUECWE-20

Windows Common Log File System Driver Elevation of Privilege Vulnerability

High · published May 13, 2025

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 7.8. It is confirmed in active exploitation. It sits in the 83.4th percentile for exploit probability.

508
days past CISA
deadline
CVSS v3.1
7.8
EPSS
2%
Percentile
83.4
In the wild
Confirmed
What it is

⚡ An authorized attacker can exploit improper input validation in Windows' Common Log File System Driver to elevate their privileges! 🔥 Think of this as a hotel with a hidden backdoor—if someone knows where it is, they can slip in and access exclusive areas without ever checking in at the front desk. This vulnerability lets intruders gain unwarranted access to parts of the system they shouldn't see! This means attackers could escalate their permissions, allowing them to change settings, install malware, or access sensitive data—all actions that could severely compromise system integrity and user privacy. The potential damage is absolutely devastating!

Put simply

Think of this as a hotel with a hidden backdoor—if someone knows where it is, they can slip in and access exclusive areas without ever checking in at the front desk. This vulnerability lets intruders gain unwarranted access to parts of the system they shouldn't see! The vulnerability arises from inadequate input validation within the driver, allowing local users to craft inputs that bypass security checks, leading to unauthorized privilege escalation.

What to do

This means attackers could escalate their permissions, allowing them to change settings, install malware, or access sensitive data—all actions that could severely compromise system integrity and user privacy. The potential damage is absolutely devastating! Immediately apply the available security patches from Microsoft to close this hole. Additionally, review your system access controls to ensure that only necessary permissions are granted to users. 🔒 You've got this! By patching swiftly and tightening permissions, you can ensure your system stays safe and secure. 🛡️

The record
Technical detail
CVSS v3.1
7.8 · HIGH
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
CVSS v4.0
Not supplied
EPSS
0.02333 · 83.4th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2025-05-13T16:58Z
KEV added
2025-05-13 · due 2025-06-03
EPSS history
Timeline
  • 13 MAY 16:58Z
    Windows Common Log File System Driver Elevation of Privilege Vulnerability
    cvelistv5
  • 13 MAY 00:00Z
    Added to CISA KEV — remediate by Jun 3
    kev