Patch Tuesday, January 2026 Edition

Microsoft today issued patches to plug at least 113 security holes in its various Windows operating systems and supported software. Eight of the vulnerabilities earned Microsoft's most-dire "critical" rating, and the company warns that attackers are already exploiting one of the bugs fixed today...

The vulnerability of the window manager for desktop workstations in Windows operating systems allows attackers to disclose protected information.

The vulnerability of the Desktop Window Manager DWM in Windows operating systems relates to the display of information. Exploiting this vulnerability can allow an attacker to reveal protected information displayed by the Desktop Window Manager...

CVE-2026-20871

Use after free in Desktop Windows Manager allows an authorized attacker to elevate privileges locally...

CVE-2026-20871

Use after free in Desktop Windows Manager allows an authorized attacker to elevate privileges locally...

CVE-2026-20842

Use after free in Windows DWM allows an authorized attacker to elevate privileges locally...

CVE-2026-20805

Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally...

CVE-2026-20805

Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally...

CVE-2026-20871

Use after free in Desktop Windows Manager allows an authorized attacker to elevate privileges locally...

CVE-2026-20871 Desktop Window Manager Elevation of Privilege Vulnerability

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CVE-2026-20871

CVE-2026-20871 refers to a Desktop Window Manager (dwm.exe) use-after-free vulnerability that enables local privilege escalation to SYSTEM. The connected exploit report and advisories describe a DWM-related attack path (Visual‑Field Singularity) affecting the DWM compositor, with PoC/claims of in...

CVE-2026-20842 Microsoft DWM Core Library Elevation of Privilege Vulnerability

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CVE-2026-20842

Use after free in Windows DWM allows an authorized attacker to elevate privileges locally...

CVE-2026-20805

Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally...

CVE-2026-20805

CVE-2026-20805 is a local information-disclosure vulnerability in Microsoft Windows Desktop Window Manager (dwm.exe). The provided documents describe that an authenticated, low-privilege user can leak sensitive information via improper handling of ALPC-related structures (ALPC ports/sections) and...

CVE-2026-20805 Desktop Window Manager Information Disclosure Vulnerability

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CVE-2026-20805 Desktop Window Manager Information Disclosure Vulnerability

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Microsoft DWM Core Library Elevation of Privilege Vulnerability

Use after free in Windows DWM allows an authorized attacker to elevate privileges locally...

Desktop Window Manager Information Disclosure Vulnerability

Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally...

PT-2026-2716

Name of the Vulnerable Software and Affected Versions Microsoft Windows versions affected versions not specified Description A use-after-free condition exists in the Desktop Windows Manager that could allow an authorized attacker to gain elevated privileges on a local system. Recommendations At t...

Microsoft Desktop Windows Manager 安全漏洞

Microsoft Desktop Windows Manager is a desktop window manager from Microsoft Corporation USA. A security vulnerability exists in Microsoft Desktop Windows Manager. An attacker exploiting this vulnerability could gain access to sensitive information. The following products and versions are...