CVE-2025-29955

Windows Hyper-V Denial of Service Vulnerability

CVE-2025-29955 is fixed in 4 products on 1 platform, first by KB5058411, released May 13, 2025. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

6.2

Important

Exploitation

None reported

Exploitation Unlikely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0060

49th percentile

<p>Improper input validation in Windows Hyper-V allows an unauthorized attacker to deny service locally.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 11 Version 24H2 for x64-based Systems	26100.4061	KB5058411	May 13, 2025
Windows 11 Version 24H2 for x64-based Systems	26100.3981	KB5058497	May 13, 2025
Windows Server 2022, 23H2 Edition (Server Core installation)	25398.1611	KB5058384	May 13, 2025
Windows Server 2025	26100.4061	KB5058411	May 13, 2025
Windows Server 2025	26100.3981	KB5058497	May 13, 2025
Windows Server 2025 (Server Core installation)	26100.4061	KB5058411	May 13, 2025
Windows Server 2025 (Server Core installation)	26100.3981	KB5058497	May 13, 2025

Details

Published
May 13, 2025
Weakness
Improper Input Validation
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29955

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