Microsoft Windows NTLM Hash Disclosure Spoofing Vulnerability (CVE-2025-24054)
Severity: medium · Patch status: unknown · Since 2025-04-17 · CVE-2025-24054
Microsoft Windows NTLM contains an external control of file name or path vulnerability that allows an unauthorized attacker to perform spoofing over a network. CISA added CVE-2025-24054 to its Known Exploited Vulnerabilities catalog on Apr 17, 2025, which means attackers are exploiting it in the wild.
What to do
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- US federal agencies must remediate by May 8, 2025 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch