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OpenAdvisories
Medium · 6.8 CVE-2025-49751 EUVD-2025-24379GHSA-ppcc-7hrx-r7pf

Windows Hyper-V Denial of Service Vulnerability

Published Aug 12, 2025 · Updated Feb 13, 2026 · Assigned by microsoft

Vendor: Microsoft 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

Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent network.

Affected products

VendorProductAffectedFixed
Microsoft Windows 10 Version 1607 10.0.14393.0 – < 10.0.14393.8330 10.0.14393.8330
Microsoft Windows 10 Version 1809 10.0.17763.0 – < 10.0.17763.7678 10.0.17763.7678
Microsoft Windows 10 Version 21H2 10.0.19044.0 – < 10.0.19044.6216 10.0.19044.6216
Microsoft Windows 10 Version 22H2 10.0.19045.0 – < 10.0.19045.6216 10.0.19045.6216
Microsoft Windows 11 version 22H2 10.0.22621.0 – < 10.0.22621.5768 10.0.22621.5768
Microsoft Windows 11 version 22H3 10.0.22631.0 – < 10.0.22631.5768 10.0.22631.5768
Microsoft Windows 11 Version 23H2 10.0.22631.0 – < 10.0.22631.5768 10.0.22631.5768
Microsoft Windows 11 Version 24H2 10.0.26100.0 – < 10.0.26100.4946 10.0.26100.4946
Microsoft Windows Server 2016 10.0.14393.0 – < 10.0.14393.8330 10.0.14393.8330
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – < 10.0.14393.8330 10.0.14393.8330
Microsoft Windows Server 2019 10.0.17763.0 – < 10.0.17763.7678 10.0.17763.7678
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – < 10.0.17763.7678 10.0.17763.7678
Microsoft Windows Server 2022 10.0.20348.0 – < 10.0.20348.4052 10.0.20348.4052
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 – < 10.0.25398.1791 10.0.25398.1791
Microsoft Windows Server 2025 10.0.26100.0 – < 10.0.26100.4946 10.0.26100.4946
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 – < 10.0.26100.4946 10.0.26100.4946

Advisories 3

References