CVE-2026-42896

Published May 12, 2026

Last updated a day ago

Overview

Description
Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
Source
secure@microsoft.com
NVD status
Analyzed
Products
windows_11_24h2, windows_11_25h2, windows_11_26h1, windows_server_2025

Risk scores

CVSS 3.1

Type
Primary
Base score
7.8
Impact score
5.9
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity
HIGH

Weaknesses

secure@microsoft.com
CWE-122

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.