CVE-2025-53778CWE-287

Windows NTLM Elevation of Privilege Vulnerability

High · published August 12, 2025

Patch now

High probability of exploitation

CVSS calls it high at 8.8. It sits in the 98.9th percentile for exploit probability.

CVSS v3.1
8.8
EPSS
51%
Percentile
98.9
In the wild
Unconfirmed
What it is

Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges over a network.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.51467 · 98.9th percentile
Weakness
CWE-287 · Improper Authentication
Published
2025-08-12T17:10Z
EPSS history
Timeline
  • 12 AUG 17:10Z
    Windows NTLM Elevation of Privilege Vulnerability
    cvelistv5