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Windows 11 24h2 CVE-2025-29955

MEDIUM
Improper Input Validation (CWE-20)
2025-05-13 secure@microsoft.com
Microsoft Authentication Bypass Windows 11 24h2 Windows Server 2022 23h2 Windows Server 2025 Windows
6.2
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
6.2 MEDIUM
AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 18:41 vuln.today
CVE Published
May 13, 2025 - 17:15 nvd
MEDIUM 6.2

DescriptionCVE.org

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

AnalysisAI

Improper input validation in Windows Hyper-V allows an unauthorized attacker to deny service locally. Rated medium severity (CVSS 6.2), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-20. Improper input validation in Windows Hyper-V allows an unauthorized attacker to deny service locally. Affected products include: Microsoft Windows 11 24H2, Microsoft Windows Server 2022 23H2, Microsoft Windows Server 2025.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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CVE-2025-29955 vulnerability details – vuln.today
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