CVE-2025-54099CWE-121

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

High · published September 9, 2025

CVSS v3.1
7.0
EPSS
0%
Percentile
31.0
In the wild
Unconfirmed
What it is

Stack-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

The record
Technical detail
CVSS v3.1
7.0 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00382 · 31.0th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2025-09-09T17:00Z
EPSS history
Timeline
  • 09 SEP 17:00Z
    Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
    cvelistv5