{"id":"CVE-2017-8540","aliases":["EUVD-2017-17490","GHSA-342q-x494-83vw"],"status":"published","title":"The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on...","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-2017-8541.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.71874,"percentile":0.9943,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-119","CWE-787"],"published":"2017-05-26T20:00:00Z","modified":"2026-06-17T01:26:32Z","kev":{"date_added":"2022-03-03","due_date":"2022-03-24","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2022-03-03"},{"source":"kev","since":"2022-03-03"}],"exploits":[{"source":"exploitdb","id":"EDB-42088","title":"Microsoft MsMpEng - Remote Use-After-Free Due to Design Issue in GC Engine","type":"dos","platform":"windows","date":"2017-05-30","verified":true,"url":"https://www.exploit-db.com/exploits/42088"}],"products":[{"vendor":"microsoft","product":"endpoint_protection"},{"vendor":"microsoft","product":"exchange_server"},{"vendor":"microsoft","product":"forefront_endpoint_protection"},{"vendor":"microsoft","product":"forefront_security"},{"vendor":"microsoft","product":"intune_endpoint_protection"},{"vendor":"microsoft","product":"malware protection engine"},{"vendor":"microsoft","product":"malware_protection_engine"},{"vendor":"microsoft","product":"security_essentials"},{"vendor":"microsoft","product":"system_center_endpoint_protection"},{"vendor":"microsoft","product":"windows_defender"},{"vendor":"microsoft corporation","product":"malware protection engine"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8540","tags":["x_refsource_CONFIRM","x_transferred","Mitigation","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/98703","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://www.exploit-db.com/exploits/42088/","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1038571","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-8540","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-8540"},{"url":"https://www.exploit-db.com/exploits/42088"},{"url":"https://github.com/advisories/GHSA-342q-x494-83vw"}],"sources":{"cve":[{"id":"CVE-2017-8540","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-2017-8541.","status":"published","published":"2017-05-26T20:00:00Z","modified":"2025-10-21T23:55:40.255Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:33:14.89365Z"}],"euvd":[{"id":"EUVD-2017-17490","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-2017-8541.","status":"published","published":"2017-05-26T20:00:00Z","modified":"2025-10-21T23:55:40Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"exploited_since":"2022-03-03","updated_at":"2026-11-02T19:49:39.684828Z"}],"ghsa":[{"id":"GHSA-342q-x494-83vw","title":"The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on...","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-2017-8541.","status":"published","published":"2022-05-17T02:14:18Z","modified":"2025-10-22T00:31:23Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-119","CWE-787"],"updated_at":"2026-11-02T15:04:03.556367Z"}],"kev":[{"id":"CVE-2017-8540","title":"Microsoft Malware Protection Engine Improper Restriction of Operations Vulnerability","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\".","cwes":["CWE-119"],"kev":{"date_added":"2022-03-03","due_date":"2022-03-24","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:16.541131Z"}],"nvd":[{"id":"CVE-2017-8540","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-2017-8541.","status":"published","published":"2017-05-26T20:29:00.427Z","modified":"2026-06-17T01:26:32.713Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:03:49.449157Z"}]}}