{"id":"CVE-2024-43461","published":"2024-09-10T17:15:33Z","modified":"2026-08-10T16:19:10Z","title":"Microsoft Windows MSHTML Platform Spoofing Vulnerability","vendor":"Microsoft","product":"Windows","tier":"core","eol":null,"description":{"text":"Windows MSHTML Platform Spoofing Vulnerability","provenance":"source","from":"NVD"},"summary":{"text":"The MSHTML Platform component of Microsoft Windows contains a spoofing flaw, classified as a user interface misrepresentation of critical information, meaning the displayed content can misrepresent what is actually being loaded or trusted. An attacker can exploit this over the network without authentication, but the attack requires a user to interact with a crafted element, such as opening a malicious file or link.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:12:28Z"},"cvss":{"score":8.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.54486,"percentile":0.99011,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2024-09-16","dueDate":"2024-10-07","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","notes":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43461 ; https://nvd.nist.gov/vuln/detail/CVE-2024-43461","provenance":"source"},"vulncheckKev":{"dateAdded":"2024-09-10","exploitedFirstSeen":"2024-09-10","ransomware":false,"evidence":[{"url":"https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2024-Sep","date":"2024-09-10"},{"url":"https://www.zerodayinitiative.com/blog/2024/9/10/the-september-2024-security-update-review","date":"2024-09-10"},{"url":"https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2024-43461","date":"2024-09-13"},{"url":"https://www.bleepingcomputer.com/news/security/windows-vulnerability-abused-braille-spaces-in-zero-day-attacks/amp/","date":"2024-09-15"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2024-09-16"},{"url":"https://www.tenable.com/blog/microsoft-october-2024-patch-tuesday-addresses-117-cves-cve-2024-43572-cve-2024-43573","date":"2024-10-08"},{"url":"https://www.ptsecurity.com/ru-ru/research/analytics/dajdzhest-trendovyh-uyazvimostej-sentyabr-2024-goda/","date":"2024-10-09"},{"url":"https://www.zerodayinitiative.com/blog/2025/1/8/zdi-threat-hunting-2024-highlights-trends-amp-challenges","date":"2025-01-08"},{"url":"https://www.quorumcyber.com/wp-content/uploads/2025/01/Global-Cyber-Risk-Outlook-Report-2025.pdf","date":"2025-02-28"},{"url":"https://assets.beyondtrust.com/assets/documents/Microsoft-Vulnerabilities-Report-2025-14-Apr-2025.pdf","date":"2025-04-17"}],"evidenceTotal":10,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"}],"provenance":"machine"},"cwes":[{"id":"CWE-451","name":"User Interface (UI) Misrepresentation of Critical Information"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43461","tags":["Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-43461","tags":["US Government Resource"]}],"techniques":[{"id":"T1204.001","name":"Malicious Link","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: requires user to open malicious content","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"Windows MSHTML Platform Spoofing Vulnerability","start":0,"end":46}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2024-40730","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2024-40730","exploited":true,"exploitedSince":"2024-09-16","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1204.001"],"provenance":"ai"}],"timeline":[{"date":"2024-09-10","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-43461","provenance":"source"},{"date":"2024-09-10","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2024-Sep","provenance":"source"},{"date":"2024-09-16","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2024-09-16","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2024-40730","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":6},"priority":{"score":64.0,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 780 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.8,"detail":"percentile 0.9901"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.16,"detail":"base score 8.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}