Cyber Resilience

CVE-2025-29955

Medium

Published: 13 May 2025

Published
13 May 2025
Modified
19 May 2025
KEV Added
Patch
CVSS Score v3.1 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0077 74.0th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-29955 is a medium-severity Improper Input Validation (CWE-20) vulnerability in Microsoft Windows 11 24H2. Its CVSS base score is 6.2 (Medium).

Operationally, ranked in the top 26.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

microsoft
windows 11 24h2
≤ 10.0.26100.4061
microsoft
windows server 2022 23h2
≤ 10.0.25398.1611
microsoft
windows server 2025
≤ 10.0.26100.4061

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-20

Security testing and developer training directly verify and enforce proper input validation, reducing exploitability of injection and malformed-data weaknesses.

addresses: CWE-20

Security testing and evaluation at multiple SDLC stages directly detects missing or flawed input validation, with the required remediation process ensuring fixes are applied.

addresses: CWE-20

Directly implements checks on information inputs to reject invalid data before processing.

addresses: CWE-20

Spam protection mechanisms perform filtering and detection on inbound/outbound messages, directly compensating for missing or weak input validation of unsolicited content.

References