PT-2026-47884 · Microsoft · Windows Dwm Core Library

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-42905

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Windows DWM Core Library (affected versions not specified)

Description A use after free issue in the Windows DWM Core Library allows an authorized attacker to elevate privileges locally. Use after free is a condition where a program continues to use a pointer after it has been freed, which can lead to memory corruption or arbitrary code execution.

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

CVE-2026-42905

Affected Products

Windows Dwm Core Library

References · 4

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-42905 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42905 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-42905 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-42905 · Security Note