What is the CVSS score of EUVD-2026-22537?

EUVD-2026-22537 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 EUVD-2026-22537?

A high-severity privilege escalation vulnerability in Windows 11 and Server 2022/2025 Desktop Window Manager allows any low-privileged user to gain SYSTEM-level access through a use-after-free…. A patch is available.

How to fix or mitigate EUVD-2026-22537?

Within 24 hours: inventory all Windows 11 (22H2-26H1) and Server 2022/2025 systems in your environment and prioritize servers and administrative workstations. Within 7 days: apply vendor-released patch for CVE-2026-32152 to all identified systems, beginning with critical infrastructure and Tier-1 assets. Within 30 days: complete patching of all remaining in-scope systems and verify deployment through vulnerability scanning.

Desktop Window Manager EUVD-2026-22537

| CVE-2026-32152 HIGH

Use After Free (CWE-416)

2026-04-14 microsoft

GHSA-648m-637p-635w

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-2026-22537

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

Desktop Window Manager (DWM) use-after-free vulnerability enables local privilege escalation to SYSTEM on Windows 11 and Server 2022/2025. Low-complexity attack requires only low-privileged authenticated access with no user interaction, affecting all current Windows 11 versions (22H2 through 26H1) and Server editions. Vendor-released patches available as of May 2026. CVSS 7.8 (High) reflects significant local privilege escalation risk; no public exploit identified at time of analysis, though the

Technical ContextAI

Desktop Window Manager (dwm.exe) is the Windows compositing window manager responsible for visual effects, Aero Glass rendering, and desktop composition since Windows Vista. This vulnerability stems from CWE-416 (Use After Free), a memory corruption class where the DWM process attempts to access previously freed memory objects. Use-after-free conditions in privileged system processes like DWM (which runs with SYSTEM privileges) are particularly dangerous because successful exploitation allows attackers to control freed memory contents and redirect execution flow. The CVSS vector AV:L indicates local access requirement, while PR:L confirms low-privileged authenticated users can trigger the condition. The vulnerability affects the core dwm.exe component across multiple Windows builds, spanning Windows 11 versions 22H2 (build 10.0.22631.x), 23H2, 24H2, 25H2, 26H1 (build 10.0.28000.x), and Windows Server 2022/2025 including Server Core installations. The unscoped (S:U) impact means the vulnerability is contained within the vulnerable component's security context, though given DWM's SYSTEM-level execution, this still represents full system compromise.

RemediationAI

Apply Microsoft security updates immediately to patch the Desktop Window Manager use-after-free vulnerability. Vendor-released patches are available through Windows Update and Microsoft Update Catalog for all affected versions: upgrade Windows 11 22H2/23H2 systems to build 10.0.22631.6936 or later, Windows 11 24H2 and Server 2025 to build 10.0.26100.32690 or later, Windows 11 25H2 to build 10.0.26200.8246 or later, Windows 11 26H1 to build 10.0.28000.1836 or later, Windows Server 2022 to build 10.0.20348.5020 or later, and Windows Server 2022 23H2 Server Core to build 10.0.25398.2274 or later. Organizations should prioritize patching multi-user systems and servers where privilege escalation poses highest risk. No workarounds are documented; patching is the only complete remediation. Refer to the official Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32152 for deployment guidance and update package downloads. Monitor system logs for unexpected dwm.exe crashes or anomalous behavior that might indicate exploitation attempts.