November 12, 2024 · Applied Cybernetics Group
CVE-2024-43451 — Microsoft Windows
Microsoft Windows NTLMv2 Hash Disclosure Spoofing Vulnerability
- Added to KEV
2024-11-12- Federal due date
2024-12-03- Vendor
- Microsoft
- Product
- Windows
- EPSS
- 99.6th percentile (score 0.903, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2024-43451
CISA short description
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.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.