{"id":"CVE-2024-38213","published":"2024-08-13T18:15:30Z","modified":"2026-06-17T07:39:41Z","title":"Microsoft Windows SmartScreen Security Feature Bypass Vulnerability","vendor":"Microsoft","product":"Windows","tier":"core","eol":null,"description":{"text":"Windows Mark of the Web Security Feature Bypass Vulnerability","provenance":"source","from":"NVD"},"summary":{"text":"A security feature bypass in Microsoft Windows affects the Mark of the Web and SmartScreen protections, which are meant to flag files downloaded from the internet. An attacker who can get a user to open a crafted file can bypass these protections, and the attack is reachable over the network with no authentication required but depends on the user interacting with the file.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:14:04Z"},"cvss":{"score":6.5,"severity":"MEDIUM","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","provenance":"source","from":"NVD"},"epss":{"score":0.13626,"percentile":0.96469,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2024-08-13","dueDate":"2024-09-03","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-2024-38213; https://nvd.nist.gov/vuln/detail/CVE-2024-38213","provenance":"source"},"vulncheckKev":{"dateAdded":"2024-08-13","exploitedFirstSeen":"2024-08-13","ransomware":false,"evidence":[{"url":"https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2024-Aug","date":"2024-08-13"},{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38213","date":"2024-08-13"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2024-08-13"},{"url":"https://www.zerodayinitiative.com/blog/2024/8/14/cve-2024-38213-copy2pwn-exploit-evades-windows-web-protections","date":"2024-08-15"},{"url":"https://www.zerodayinitiative.com/blog/2025/1/8/zdi-threat-hunting-2024-highlights-trends-amp-challenges","date":"2025-01-08"},{"url":"https://cert.gov.ua/article/6282517","date":"2025-02-23"},{"url":"https://asec.ahnlab.com/ko/87042/","date":"2025-03-27"},{"url":"https://www.enisa.europa.eu/sites/default/files/2025-10/ENISA%20Threat%20Landscape%202025.pdf","date":"2025-10-09"},{"url":"https://www.loginsoft.com/reports/annually/vulnerability-intelligence-report-2025","date":"2026-01-20"},{"url":"https://www.rnbo.gov.ua/files/2026/NATIONAL_CYBER_SCC/kiber_2025.pdf","date":"2026-05-13"}],"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-693","name":"Protection Mechanism Failure"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38213","tags":["Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-38213","tags":["US Government Resource"]}],"techniques":[{"id":"T1553.005","name":"Mark-of-the-Web Bypass","tactics":["defense-impairment"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Bypasses Mark-of-the-Web protection mechanism","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"Windows Mark of the Web Security Feature Bypass Vulnerability","start":0,"end":61}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2024-37180","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2024-37180","exploited":true,"exploitedSince":"2024-08-13","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1553.005"],"provenance":"ai"}],"timeline":[{"date":"2024-08-13","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-38213","provenance":"source"},{"date":"2024-08-13","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2024-Aug","provenance":"source"},{"date":"2024-08-13","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2024-08-13","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2024-37180","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":0},"priority":{"score":61.8,"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 808 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.29,"detail":"percentile 0.9647"},{"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":4.55,"detail":"base score 6.5"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-microsoft-windows-cwe-693"}}