CVE-2025-24054
Published 2025-03-11 · Updated 2026-06-17 · Source secure@microsoft.com
Summary
CVE-2025-24054 is a medium-severity (CVSS 6.5) vulnerability in Microsoft Windows. CISA added it to the Known Exploited Vulnerabilities catalog on April 17, 2025, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 8, 2025. CISA does not currently list it as used in ransomware campaigns. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.
All 390 known-exploited Microsoft vulnerabilities →Description
External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CISA Known-Exploited Vulnerability
Product: Microsoft — Windows
Name: Microsoft Windows NTLM Hash Disclosure Spoofing Vulnerability
Date added: 2025-04-17 · Due: 2025-05-08
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24054
- http://seclists.org/fulldisclosure/2025/Apr/28
- https://www.exploit-db.com/exploits/52478
- https://www.exploit-db.com/exploits/52480
- https://www.vicarius.io/vsociety/posts/cve-2025-24054-spoofing-vulnerability-in-windows-ntlm-by-microsoft-detection-script
- https://www.vicarius.io/vsociety/posts/cve-2025-24054-spoofing-vulnerability-in-windows-ntlm-by-microsoft-mitigation-script
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24054