{"id":"CVE-2017-8541","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-8541","generatedAt":"2026-10-28T21:52:43.041Z","title":"The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and…","description":"The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016, Microsoft Exchange Server 2013 and 2016, does not properly scan a specially crafted file leading to memory corruption. aka \"Microsoft Malware Protection Engine Remote Code Execution Vulnerability\", a different vulnerability than CVE-2017-8538 and CVE-2017-8540.","published":"2017-05-26T20:29:00.000Z","lastModified":"2026-06-17T01:26:33.000Z","status":"Modified","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.0","score":7.8,"severity":"HIGH","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-119"],"affected":["microsoft/forefront security","microsoft/malware protection engine","microsoft/windows defender"],"epss":{"score":0.4812,"percentile":0.98852,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.42581,"percentile":0.98688},{"date":"2026-09-22","score":0.4812,"percentile":0.98802}]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2017-05-30","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":42092,"kind":"exploit","title":"Microsoft MsMpEng - Use-After-Free via Saved Callers","url":"https://www.exploit-db.com/exploits/42092","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/42092.txt","file":"exploits/windows/dos/42092.txt","published":"2017-05-30","added":"2017-05-30","updated":"2017-05-30","author":"Google Security Research","type":"dos","platform":"windows","port":null,"verified":true,"codes":["CVE-2017-8541"],"tags":"Use After Free (UAF)","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1259"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 48.1%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-22T00:00:00.000Z","detail":{"to":0.4812,"from":0.42581,"percentile":0.98802},"summary":"EPSS moved from 42.6% to 48.1% probability of exploitation in the next thirty days."}],"references":[{"url":"http://www.securityfocus.com/bid/98710","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"http://www.securitytracker.com/id/1038571","source":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8541","tags":["Vendor Advisory"],"source":"secure@microsoft.com"},{"url":"https://www.exploit-db.com/exploits/42092/","source":"secure@microsoft.com"},{"url":"http://www.securityfocus.com/bid/98710","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1038571","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8541","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/42092/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-8541","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}