{"schema_version":"1","data":[{"id":1046,"advisory_id":"fcf6ce72-7b7e-43fc-9fba-d125d177a33f","revision":1,"source_id":"core-kev","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2024-43451","source_published_at":"2024-11-12T00:00:00+00:00","published_at":"2026-10-24T20:55:13.001814+00:00","extraction_method":"structured","technologies":["core-kev","windows"],"cve_ids":["CVE-2024-43451"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"Microsoft Windows NTLMv2 Hash Disclosure Spoofing Vulnerability","summary":"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. CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","evidence":"kev:CVE-2024-43451","products":[{"name":{"value":"Windows","evidence":"/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2024-43451","aliases":["CVE-2024-43451"],"affected":[],"modified":"2024-11-12T00:00:00.000Z","provider":"kev","references":["https://www.cisa.gov/known-exploited-vulnerabilities-catalog"],"exploitation":{"cwes":["CWE-73"],"cveID":"CVE-2024-43451","notes":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43451 ; https://nvd.nist.gov/vuln/detail/CVE-2024-43451","dueDate":"2024-12-03","product":"Windows","dateAdded":"2024-11-12","vendorProject":"Microsoft","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","known_exploited":true,"shortDescription":"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.","vulnerabilityName":"Microsoft Windows NTLMv2 Hash Disclosure Spoofing Vulnerability","knownRansomwareCampaignUse":"Unknown"}},"related_cves":[{"value":"CVE-2024-43451","evidence":"/cveID"}],"security_relevant":true,"severity_evidence":null}}],"next_after":1046,"next_before":1046}