What is the CVSS score of CVE-2026-32154?

CVE-2026-32154 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Desktop Window Manager are affected by CVE-2026-32154?

Microsoft Desktop Window Manager (dwm.exe) contains a local privilege escalation vulnerability affecting all supported Windows 10, Windows 11, and Windows Server versions that allows authenticated…. A patch is available.

How to fix or mitigate CVE-2026-32154?

Within 24 hours: Inventory all Windows 10, Windows 11, and Windows Server 2016-2025 systems in your environment and identify current patch levels. Within 7 days: Deploy vendor-released patches across Windows 10 (all versions through 26H1), Windows 11 (all versions through 26H1), and Windows Server 2016-2025; prioritize systems with high-value assets or administrative users. Within 30 days: Verify patch deployment completion through automated compliance scanning and confirm dwm.exe versions match patched baselines for all affected systems.

Desktop Window Manager CVE-2026-32154

EUVD-2026-22540 HIGH

Use After Free (CWE-416)

2026-04-14 microsoft

GHSA-j48c-2rrx-55wc

Denial Of Service Use After Free Memory Corruption

7.8

CVSS 3.1 · NVD

Temporal: 6.8

Severity by source

NVD PRIMARY

7.8 HIGH

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

CIRCL (temporal)

6.8 MEDIUM

cvss

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Re-analysis Queued

Apr 17, 2026 - 15:22 vuln.today

cvss_changed

Analysis Generated

Apr 14, 2026 - 19:19 vuln.today

EUVD ID Assigned

Apr 14, 2026 - 17:46 euvd

EUVD-2026-22540

Analysis Generated

Apr 14, 2026 - 17:46 vuln.today

Patch released

Apr 14, 2026 - 17:46 nvd

Patch available

CVE Published

Apr 14, 2026 - 16:57 nvd

HIGH 7.8

DescriptionCVE.org

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

AnalysisAI

Local privilege escalation in Microsoft Desktop Window Manager (dwm.exe) affects all supported Windows 10, Windows 11, and Windows Server versions via a use-after-free memory corruption flaw. Authenticated local attackers with low privileges can exploit this CWE-416 weakness to gain SYSTEM-level access with low attack complexity, requiring no user interaction. No public exploit identified at time of analysis, and SSVC framework assesses exploitation status as 'none' with non-automatable attack r

Technical ContextAI

Desktop Window Manager (dwm.exe) is the Windows compositing window manager responsible for rendering visual effects, window animations, and the graphical user interface. This CWE-416 use-after-free vulnerability occurs when DWM incorrectly manages memory object lifecycles, allowing a pointer to be dereferenced after its associated memory has been freed. The affected component runs with SYSTEM privileges in Session 0, making it an attractive privilege escalation target. CPE data confirms impact across the entire modern Windows ecosystem: Windows 10 versions 1607, 1809, 21H2, and 22H2; Windows 11 versions 22H3, 23H2, 24H2, 25H2, and 26H1; plus Windows Server 2016, 2019, 2022 (including 23H2 Edition), and 2025 in both standard and Server Core installations. The local attack vector (AV:L) and low privilege requirement (PR:L) indicate exploitation occurs through authenticated local access, typical of UAC bypass or sandbox escape scenarios in Windows environments.

RemediationAI

Apply Microsoft security updates immediately through Windows Update or WSUS to upgrade to patched builds: Windows 10 Version 1607 and Server 2016 to build 10.0.14393.9060 or later; Windows 10 Version 1809 and Server 2019 to build 10.0.17763.8644 or later; Windows 10 Version 21H2 to build 10.0.19044.7184 or later; Windows 10 Version 22H2 to build 10.0.19045.7184 or later; Windows 11 Version 22H3 and 23H2 to build 10.0.22631.6936 or later; Windows 11 Version 24H2 and Server 2025 to build 10.0.26100.32690 or later; Windows 11 Version 25H2 to build 10.0.26200.8246 or later; Windows 11 Version 26H1 to build 10.0.28000.1836 or later; Windows Server 2022 to build 10.0.20348.5020 or later; Windows Server 2022 23H2 Edition to build 10.0.25398.2274 or later. Complete patch details and installation guidance available at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-