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
- 62.27% probability · 99th percentile
- Public exploits
- 3 in Exploit-DB · first 1 May 2025
- 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
EPSS moved from 62.3% on 14 October 2026 to 62.3% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
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
Public exploits (3)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
| EDB-ID | Title | Type | Published | Verified |
|---|---|---|---|---|
| EDB-52480source ↗ | Windows 10.0.17763.7009 - spoofing vulnerabilitywindows · beatrizfn | remote | 11 February 2026 | no |
| EDB-52478source ↗ | windows 10/11 - NTLM Hash Disclosure Spoofingwindows · beatrizfn | remote | 4 February 2026 | no |
| EDB-52280source ↗ | Microsoft - NTLM Hash Disclosure Spoofing (library-ms)windows · hyp3rlinx | local | 1 May 2025 | no |
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, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.