CVE-2025-21311

—

CVSS 3.1

9.8 critical

EPSS

2%p82

Published

Jan 14, 2025 (Jan 14, 2025)

Modified

Jun 17, 2026

Description

Windows NTLM V1 Elevation of Privilege Vulnerability

Vendors: microsoft
Products: windows 11 24h2, windows server 2022 23h2, windows server 2025
Weakness: CWE-303
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (2.2%)

In the news5 stories

3 Actively Exploited Zero-Day Flaws Patched in Microsoft's Latest Security Update

The Hacker NewsJan 21, 15:30 UTC · Jan 21, 2025Exploit / PoC in the wildCVE-2024-7344 CVE-2025-21333 CVE-2025-21334+13 CVEs

60

Microsoft Patches Eight Zero

Infosecurity MagazineJan 15, 10:00 UTC · Jan 15, 2025Vulnerability in the wildCVE-2025-21333 CVE-2025-21334 CVE-2025-21335+8 CVEs

60

Microsoft: Happy 2025. Here’s 161 Security Updates

Krebs on SecurityJan 15, 00:00 UTC · Jan 15, 2025Vulnerability in the wildCVE-2025-21333 CVE-2025-21334 CVE-2025-21335+7 CVEs

60

Microsoft fixes 159 vulnerabilities in first Patch Tuesday of 2025

CyberScoopJan 14, 21:55 UTC · Jan 14, 2025Vulnerability in the wildCVE-2025-21298 CVE-2025-21307 CVE-2025-21311+3 CVEs

60

Microsoft Patch Tuesday for January 2025 — Snort rules and prominent vulnerabilities

Cisco TalosJan 14, 21:15 UTC · Jan 14, 2025Vulnerability CVE-2025-21309 CVE-2025-21298 CVE-2025-21294+22 CVEs

60