CVE-2024-43451
Actively exploited. CVE-2024-43451 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-11-12) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2024-43451 is indexed in GitHub PoC. Expect opportunistic scanning and exploitation attempts — prioritize remediation.
Microsoft Windows contains an NTLMv2 hash spoofing vulnerability that could result in disclosing a user's NTLMv2 hash to an attacker via a file open operation. The attacker could then leverage this hash to impersonate that user.
CSIRTS triage
- What
- Microsoft Windows contains an NTLMv2 hash spoofing vulnerability that could disclose a user's NTLMv2 hash to an attacker.
- Who is affected
- Users of affected versions of Microsoft Windows.
- Urgency
- Remediation is urgent due to active exploitation and the critical nature of the vulnerability.
- Action
- Install the latest security updates from Microsoft.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 100% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2024-43451 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
Advisory coverage (1)
- criticalexploitedCVE-2024-43451: Microsoft Windows NTLMv2 Hash Disclosure Spoofing Vulnerabilitycisa-kev · 2024-11-12
External references
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