CVE-2025-59284

Windows NTLM Spoofing Vulnerability

MEDIUM 5.5EPSS 1.0%

Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing locally.

Affected: Microsoft · Windows 11 version 22H2 · Windows 11 version 22H3 · Windows 11 Version 23H2 · Windows 11 Version 24H2 · Windows 11 Version 25H2 · Windows Server 2025
CVSS v3.1 NVD: 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS v3.1 MICROSOFT: 3.3 LOWCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
EPSS: 1.03% chance of exploitation in the next 30 days, 63rd percentile
Published: 2025-10-14
Updated: 2026-02-22

Proof-of-concept exploits (1)