CVE-2024-43451: Microsoft Windows NTLMv2 Hash Disclosure Spoofing Vulnerability
CVE-2024-43451 · Severity: critical · CVSS 6.5 · Exploited in the wild · Published 2024-11-12
Microsoft Windows contains a spoofing vulnerability that allows for the disclosure of a user's NTLMv2 hash during a file open operation. An attacker can trigger this disclosure to impersonate the user, and the vulnerability has been observed being exploited in the wild.
Yes. CVE-2024-43451 is known to be exploited in the wild, first recorded on 12 November 2024. Treat it as urgent.
How severe is CVE-2024-43451?
Critical severity, with a CVSS score of 6.5, published 12 November 2024.
Which products and versions are affected?
Microsoft Windows 10 1507, 1607, 1809, 21H2, 22H2; Microsoft Windows 11 22H2, 23H2, 24H2; Microsoft Windows Server 2008 SP2.
Is there a fix for CVE-2024-43451?
A patch was published on 2024-11-12: Microsoft released security updates. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2024-43451 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2024-43451?
Check whether you run Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Microsoft Windows 10 1507, 1607, 1809, 21H2, 22H2
Microsoft Windows 11 22H2, 23H2, 24H2
Microsoft Windows Server 2008 SP2
Timeline
2024-11-12: disclosed: Vulnerability published by Microsoft and NVD.
2024-11-12: patched: Microsoft released security updates.
2024-11-12: kev added: Added to CISA Known Exploited Vulnerabilities Catalog.
2024-11-12: exploited: Reported as exploited in the wild.