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OpenAdvisories
High · 7.5 CVE-2025-26634 EUVD-2025-7698GHSA-62q2-gc88-c4rh

Windows Core Messaging Elevation of Privileges Vulnerability

Published Mar 11, 2025 · Updated Feb 26, 2026 · Assigned by microsoft

Vendor: Microsoft Product: Windows 10 Version 1507 Product: Windows 10 Version 1607 Product: Windows 10 Version 1809 Product: Windows 10 Version 21H2 Product: Windows 10 Version 22H2 Product: Windows 11 version 22H2 Product: Windows 11 version 22H3 Product: Windows 11 version 23H2 Product: Windows 11 Version 24H2 Product: Windows Server 2016 Product: Windows Server 2016 (Server Core installation) Product: Windows Server 2019 Product: Windows Server 2019 (Server Core installation) Product: Windows Server 2022 Product: Windows Server 2022, 23H2 Edition (Server Core installation) Product: Windows Server 2025 Product: Windows Server 2025 (Server Core installation) Platform: Windows

Description

Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges over a network.

Affected products

VendorProductAffectedFixed
Microsoft Windows 10 Version 1507 10.0.10240.0 – < 10.0.10240.20915 10.0.10240.20915
Microsoft Windows 10 Version 1607 10.0.14393.0 – < 10.0.14393.7785 10.0.14393.7785
Microsoft Windows 10 Version 1809 10.0.17763.0 – < 10.0.17763.6893 10.0.17763.6893
Microsoft Windows 10 Version 21H2 10.0.19044.0 – < 10.0.19044.5487 10.0.19044.5487
Microsoft Windows 10 Version 22H2 10.0.19045.0 – < 10.0.19045.5487 10.0.19045.5487
Microsoft Windows 11 version 22H2 10.0.22621.0 – < 10.0.22621.4890 10.0.22621.4890
Microsoft Windows 11 version 22H3 10.0.22631.0 – < 10.0.22631.4890 10.0.22631.4890
Microsoft Windows 11 Version 23H2 10.0.22631.0 – < 10.0.22631.4890 10.0.22631.4890
Microsoft Windows 11 Version 24H2 10.0.26100.0 – < 10.0.26100.3194 10.0.26100.3194
Microsoft Windows Server 2016 10.0.14393.0 – < 10.0.14393.7785 10.0.14393.7785
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – < 10.0.14393.7785 10.0.14393.7785
Microsoft Windows Server 2019 10.0.17763.0 – < 10.0.17763.6893 10.0.17763.6893
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – < 10.0.17763.6893 10.0.17763.6893
Microsoft Windows Server 2022 10.0.20348.0 – < 10.0.20348.3207 10.0.20348.3207
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 – < 10.0.25398.1425 10.0.25398.1425
Microsoft Windows Server 2025 10.0.26100.0 – < 10.0.26100.3194 10.0.26100.3194
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 – < 10.0.26100.3194 10.0.26100.3194

Advisories 1

References