CVE-2026-69775: Microsoft Windows 11 version 23H2

Windows DWM Core Library Elevation of Privilege Vulnerability

CVSS 7.1 HighEPSS 0.0057 · 47th percentile

Published by the CVE Program (CNA: microsoft) at 8 Sept 2026, 17:12 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Microsoft	Windows 11 version 23H2	affected 10.0.22631.0 to before 10.0.22631.7582 custom
Microsoft	Windows 11 Version 23H2	affected 10.0.22631.0 to before 10.0.22631.7582 custom
Microsoft	Windows Server 2025	affected 10.0.26100.0 to before 10.0.26100.33438 custom
Microsoft	Windows Server 2025 (Server Core installation)	affected 10.0.26100.0 to before 10.0.26100.33438 custom

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Microsoft Windows 11 version 23H2 before 10.0.22631.7582 and Microsoft Windows Server 2025 before 10.0.26100.33438 contain a use-after-free flaw in the Windows DWM Core Library. An authorized attacker with network access can exploit it to elevate privileges. Upgrade to 10.0.22631.7582 or 10.0.26100.33438 or later.

Written 11 Nov 2026.

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.1	High	3.1	CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	CNA (microsoft)

CISA KEV Not listed.
EPSS 0.0057, the 47th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

8 Sept 2026, 17:12 UTC Confirmed by the CVE List
31 Oct 2026, 16:20 UTC First seen by agentprime

Sources

References from the CNA

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69775 vendor-advisorypatch

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.