Microsoft Windows NTLM Hash Disclosure Spoofing Vulnerability
External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.
What happened
External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.
CISA lists it as exploited, added 17 Apr 2025.
Does it affect you
Names Microsoft Windows Server. Enter the product and version you run to place it against the affected range the vendor published.
What to do
- Follow the vendor advisory for the fixed release and any interim mitigation.
msrc.microsoft.com - Follow the vendor advisory for the fixed release and any interim mitigation.
vicarius.io - Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
cisa.gov
CISA’s notes for this entry:
Affected, as published to NVD
- ms-winserver
- Microsoft Windows Server: everything below 10.0.14393.7876
The record
- NVD status
- Analyzed
- Published
- 11 Mar 2025, last modified 17 Jun 2026 (NVD)
- Severity
- CVSS 3.1 base score 5.4, Medium — computed here from the vector; NVD states 5.4.
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- Weakness
- CWE-73 External Control of File Name or Path (NVD; names by MITRE)
- Exploitation
- Listed in CISA’s Known Exploited Vulnerabilities catalogue since 17 Apr 2025; federal remediation due 08 May 2025. CISA entry
- Exploit probability
- EPSS 62.3%, 99th percentile — FIRST, scored 23 Oct 2026. FIRST EPSS
- Vendor
- Microsoft · Windows (CISA)
References on the NVD record
- msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24054Vendor Advisory
- vicarius.io/vsociety/posts/cve-2025-24054-spoofing-vulnerability-in-windows-ntlm-by-microsoft-mitigation-scriptMitigationThird Party Advisory
- exploit-db.com/exploits/52478ExploitThird Party AdvisoryVDB Entry
- exploit-db.com/exploits/52480ExploitThird Party AdvisoryVDB Entry
- vicarius.io/vsociety/posts/cve-2025-24054-spoofing-vulnerability-in-windows-ntlm-by-microsoft-detection-scriptExploitThird Party Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24054US Government Resource
- seclists.org/fulldisclosure/2025/Apr/28Mailing List
Sources
The verdict above is computed from the products and versions you entered and the affected ranges the vendor published to NVD. It does not inspect your environment, and this site never reports a product as unaffected: why.