PT-2025-36889 · Microsoft · Windows Win32K - Grfx+1

B2Ahex + 1 · Published 2025-09-09 · Updated 2025-09-10 · CVE-2025-55228

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Windows Win32K - GRFX (affected versions not specified)

Description: The issue involves concurrent execution using a shared resource with improper synchronization, specifically a race condition within Windows Win32K - GRFX. This allows an authorized attacker to execute code locally. The vulnerability also allows remote attackers to execute arbitrary code and affect the system.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Use After Free

Race Condition

Weakness Enumeration

CWE-416

CWE-362

Related Identifiers

BDU:2025-11050

CVE-2025-55228

Affected Products

Windows

Windows Win32K - Grfx

References · 10

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-55228 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-55228 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-55228 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55228 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-55228 · Security Note
• https://bdu.fstec.ru/vul/2025-11050 · Security Note
• https://twitter.com/CVEnew/status/1965557729524670967 · Twitter Post
• https://roboshadow.com/blog/patch-tuesday-september-2025 · Reddit Post
• https://t.me/avleonovcom/1583 · Telegram Post
• https://twitter.com/windowsforum/status/1965481160638603410 · Twitter Post