NTLM Hash Disclosure Spoofing Vulnerability

cisa 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.

1. 2025-03-11 Published
2. 2025-04-17 Added to CISA KEV
3. 2025-04-17 CISA SSVC: exploitation active
4. 2025-05-01 First public exploit (EDB-52280)
5. 2025-05-08 CISA patch deadline

Added

18 mo ago (2025-04-17)

Patch by

2025-05-08 (18 mo ago)

Ransomware

Not known

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.

Vendor, product

Microsoft, Windows

CISA name

Microsoft Windows NTLM Hash Disclosure Spoofing Vulnerability

How it is exploited and what it leads to, in MITRE ATT&CK terms.

• T1566 Phishing exploitation
• T1555 Credentials from Password Stores primary impact

kev release 2025-07-28, att&ck v16.1. KEV to ATT&CK mappings by the MITRE Center for Threat-Informed Defense (Mappings Explorer, Apache-2.0). © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. Terms of use

Exploitation

Active, exploited in the wild

Automatable

no

Technical impact

partial

Assessed

18 mo ago (2025-04-17)

62.27% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-08).

• EDB-52480 Windows 10.0.17763.7009 - spoofing vulnerability remote, 2026-02-11
• EDB-52478 windows 10/11 - NTLM Hash Disclosure Spoofing remote, 2026-02-04
• EDB-52280 Microsoft - NTLM Hash Disclosure Spoofing (library-ms) local, 2025-05-01
• vicarius.io https://www.vicarius.io/vsociety/posts/cve-2025-24054-spoofing-vulnerability-in-windows-ntlm-by-microsoft-detection-script referenced PoC, tagged "exploit" by a source, unverified

• Microsoft Windows 10 Version 1507
• Microsoft Windows 10 Version 1607
• Microsoft Windows 10 Version 1809
• Microsoft Windows 10 Version 21H2
• Microsoft Windows 10 Version 22H2
• Microsoft Windows 11 version 22H2
• Microsoft Windows 11 version 22H3
• Microsoft Windows 11 Version 23H2
• Microsoft Windows 11 Version 24H2
• Microsoft Windows Server 2008 R2 Service Pack 1
• Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)
• Microsoft Windows Server 2012
• Microsoft Windows Server 2012 (Server Core installation)
• Microsoft Windows Server 2012 R2
• Microsoft Windows Server 2012 R2 (Server Core installation)
• Microsoft Windows Server 2016
• Microsoft Windows Server 2016 (Server Core installation)
• Microsoft Windows Server 2019
• Microsoft Windows Server 2019 (Server Core installation)
• Microsoft Windows Server 2022
• Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
• Microsoft Windows Server 2025
• Microsoft Windows Server 2025 (Server Core installation)

Weakness

• CWE-73 External Control of File Name or Path

• msrc.microsoft.com /update-guide/vulnerability/CVE-2025-24054

  vendor-advisory, patch

• vicarius.io /vsociety/posts/cve-2025-24054-spoofing-vulnerability-in-windows-ntlm-by-microsoft-detection-script

  exploit, third-party-advisory

• exploit-db.com /exploits/52478

  exploit, third-party-advisory, vdb-entry

• exploit-db.com /exploits/52480

  exploit, third-party-advisory, vdb-entry

• cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24054

  government-resource, us-government-resource

• seclists.org /fulldisclosure/2025/Apr/28

  mailing-list

• vicarius.io /vsociety/posts/cve-2025-24054-spoofing-vulnerability-in-windows-ntlm-by-microsoft-mitigation-script

  mitigation, third-party-advisory

• CVE List CVE-2025-24054
• NVD CVE-2025-24054

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.