CVE-2026-34347 HIGH

CVE-2026-34347: Windows Win32k Elevation of Privilege Vulnerability

Vendor Microsoft
Product Windows 10 Version 1607
Weakness CWE-416
Published May 12, 2026
Last update June 9, 2026
View on NVD All CVEs

CVSS base score

7.0/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS 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

What the vulnerability does

01Description

Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

Key dates

02Disclosure timeline

May 12, 2026 CVE published
June 9, 2026 Record updated