CVE-2025-62458

—

CVSS 3.1

7.8 high

EPSS

<1%p49

Published

Dec 9, 2025 (Dec 9, 2025)

Modified

Jun 17, 2026

Description

Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

Vendors: microsoft
Products: windows 10 1607, windows 10 1809, windows 10 21h2, windows 10 22h2, windows 11 23h2, windows server 2008, windows server 2012, windows server 2016, windows server 2019, windows server 2022
Weakness: CWE-122
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.7%)

In the news3 stories

Microsoft Patch Tuesday, December 2025 Edition

Krebs on SecurityDec 10, 00:20 UTC · Dec 10, 2025Vulnerability in the wildCVE-2025-62221 CVE-2025-62554 CVE-2025-62557+8 CVEs

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

Cisco TalosDec 9, 23:29 UTC · Dec 9, 2025Vulnerability CVE-2025-62553 CVE-2025-62554 CVE-2025-62556+10 CVEs

60

Microsoft’s last Patch Tuesday of 2025 addresses 57 defects, including one zero

CyberScoopDec 9, 20:53 UTC · Dec 9, 2025Vulnerability in the wildCVE-2025-62221 CVE-2025-62456 CVE-2025-64678+8 CVEs

60