Junglewise Threat Intelligence

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

Technologies: Microsoft Windows, Microsoft Windows Server 2008, Microsoft Windows 11, Microsoft Windows 10. Vendors: Microsoft.

Executive brief

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.

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.

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