Patch tracker / CVE reference / CVE-2025-24996
CVE-2025-24996
CVE-2025-24996 is a medium severity Microsoft vulnerability with a CVSS score of 6.5. Its EPSS score puts the probability of exploitation in the next 30 days at 59%. Microsoft has shipped the fix: deploy one of the 14 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.
Risk summary
Not in the CISA KEV catalog. EPSS exploit probability 59%. CVSS 6.5 (Medium).
This CVE is among the top half of tracked Microsoft CVEs by EPSS exploit probability.
CVE-2025-24996 is an NTLM hash disclosure spoofing flaw in Windows 10 Version 1809 and Windows Server 2019 that can leak NTLM credentials, likely by tricking a user into interacting with a crafted file or resource that triggers outbound authentication. It carries Severity High with a CVSS of 8.8, and the 59 percent EPSS score signals meaningful exploit likelihood even though it is not yet in CISA KEV or tied to ransomware. Leaked NTLM hashes can be relayed or cracked offline, giving attackers a foothold for lateral movement.
Do this: Deploy the Microsoft patch to all Windows 10 1809 and Server 2019 hosts, and where possible enforce SMB signing and block outbound NTLM to restrict hash relay.
AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2025-24996
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Official patch(es) for CVE-2025-24996
High priority: EPSS puts the odds of near-term exploitation high. In Intune or Defender, confirm whether the fixing updates KB5053594, KB5053596, KB5053598, KB5053599, KB5053602, KB5053603, KB5053606, KB5053618, KB5053620, KB5053627, KB5053636, KB5053638, KB5053886, KB5053887 are installed across the affected products. Senserva does this automatically across your tenant and flags every missing patch.
Apply the Microsoft security updates below to fix CVE-2025-24996. Each KB page carries the Microsoft Update Catalog download, Microsoft's known issues for the update, a copy-paste PowerShell check for whether it is installed, and the Senserva AI read.
Scope and sources
- Affected products
- Fixed by the same updates
- Authoritative references
Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.