CVE-2025-24054
Microsoft Windows NTLM Hash Disclosure Spoofing Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 8 May 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- EPSS
- 58.91% probability · 99th percentile
- CISA KEV
- Listed 17 April 2025 · due 8 May 2025
- Weakness
- CWE-73
- Affected
- microsoft/windows 10 1507 · microsoft/windows 10 1607 · microsoft/windows 10 1809 · microsoft/windows 10 21h2 · microsoft/windows 10 22h2 · microsoft/windows 11 22h2 · microsoft/windows 11 23h2 · microsoft/windows 11 24h2 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019 · microsoft/windows server 2022 · microsoft/windows server 2022 23h2 · microsoft/windows server 2025
- Source
- secure@microsoft.com
CISA notes
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24054 ; https://nvd.nist.gov/vuln/detail/CVE-2025-24054
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24054Vendor Advisory
- http://seclists.org/fulldisclosure/2025/Apr/28Mailing List
- https://www.exploit-db.com/exploits/52478Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/52480Exploit, Third Party Advisory, VDB Entry
- https://www.vicarius.io/vsociety/posts/cve-2025-24054-spoofing-vulnerability-in-windows-ntlm-by-microsoft-detection-scriptExploit, Third Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-24054-spoofing-vulnerability-in-windows-ntlm-by-microsoft-mitigation-scriptMitigation, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24054US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.