PT-2025-28616 · Microsoft · Windows Win32K+1

Marcin Wiazowski · Published 2025-07-08 · Updated 2025-07-16 · CVE-2025-49727

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

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

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

Description: A heap-based buffer overflow issue in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

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

LPE

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

BDU:2025-08516

CVE-2025-49727

ZDI-25-584

Affected Products

Windows

Windows Win32K

References · 10

• https://bdu.fstec.ru/vul/2025-08516 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-49727 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49727 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-49727 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-49727 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-49727 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-25-584 · Security Note
• https://t.me/avleonovcom/1561 · Telegram Post
• https://twitter.com/CVEnew/status/1942633684474933561 · Twitter Post
• https://twitter.com/TheZDIBugs/status/1943061112167039051 · Twitter Post