Description
Double free in Windows Display Enhancement Service allows an authorized attacker to elevate privileges locally.
Published: 2026-09-08
Score: 7 High
EPSS: < 1% Very Low
KEV: No
Impact: Elevation of Privilege
Action: Patch Now
AI Analysis

Impact

The vulnerability is a double free in the Windows Display Enhancement Service that enables an authorized local attacker to gain elevated privileges. Because the bug allows memory corruption, a privileged user could cause arbitrary code execution with the system context, leading to a complete takeover of the affected host. The weakness is classified as CWE-415.

Affected Systems

Affected products include Microsoft Windows 11 versions 24H2, 25H2, and 26H1, as well as Microsoft Windows Server 2025 in both standard and Server Core installations.

Risk and Exploitability

The CVSS score of 7.0 indicates a high severity for local privilege escalation. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog. Attack requires local authorization; an attacker with legitimate user credentials can trigger the double free by interacting with the Display Enhancement Service. The privilege escalation would allow the attacker to gain SYSTEM rights and control the system.

Generated by OpenCVE AI on September 9, 2026 at 00:44 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the Microsoft security update for CVE-2026-70567 to all affected Windows 11 and Windows Server 2025 systems
  • Restrict local user accounts that have access to the Display Enhancement Service to the minimum necessary privileges
  • Enable Windows Defender Exploit Protection for the Display Enhancement Service and monitor for anomalous memory corruption activity

Generated by OpenCVE AI on September 9, 2026 at 00:44 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 16 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*

Thu, 10 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows Server 2025 (server Core Installation)
Vendors & Products Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows Server 2025 (server Core Installation)

Wed, 09 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 08 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Description Double free in Windows Display Enhancement Service allows an authorized attacker to elevate privileges locally.
Title Windows Display Enhancement Service Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows Server 2025
Weaknesses CWE-415
CPEs cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_25H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows Server 2025
References
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Windows 11 24h2 Windows 11 24h2 Windows 11 25h2 Windows 11 25h2 Windows 11 26h1 Windows 11 26h1 Windows Server 2025 Windows Server 2025 (server Core Installation)
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-09-25T21:36:46.394Z

Reserved: 2026-08-04T19:47:18.930Z

Link: CVE-2026-70567

cve-icon Vulnrichment

Updated: 2026-09-09T16:17:58.393Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-08T18:20:09.290

Modified: 2026-09-16T21:16:53.993

Link: CVE-2026-70567

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-10T20:55:08Z

Weaknesses