PT-2025-15525 · Microsoft · Windows

Published 2025-04-08 · Updated 2026-05-22 · CVE-2025-26687

Positive Technologies (AI Summary)

CVSS v2.0

7.6

High

Base vector

AV:N/AC:H/Au:N/C:C/I:C/A:C

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

Description: The issue is related to a use after free in Windows Win32K - GRFX, which allows an unauthorized attacker to elevate privileges over a network. This is an elevation-of-privilege vulnerability that enables attackers to affect the system.

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

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2025-04100

CVE-2025-26687

Affected Products

Windows

References · 9

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-26687 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-26687 · Security Note
• https://osv.dev/vulnerability/CVE-2025-26687 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26687 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/719764 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-26687 · Security Note
• https://bdu.fstec.ru/vul/2025-04100 · Security Note
• https://t.me/cveNotify/164585 · Telegram Post
• https://twitter.com/CVEnew/status/1909923464070476268 · Twitter Post