CVE-2017-11940

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Windows 7 SP1, Windows 8.1, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, 1709 and Windows Server 2016, Windows Server, version 1709, Microsoft Exchange Server 2013 and 2016, does not properly scan a specially crafted file leading to remote code execution. aka "Microsoft Malware Protection Engine Remote Code Execution Vulnerability". This is different than CVE-2017-11937.

• CWE-119

• http://www.securityfocus.com/bid/102104Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1039972Third Party Advisory, VDB Entry
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11940Patch, Vendor Advisory
• http://www.securityfocus.com/bid/102104Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1039972Third Party Advisory, VDB Entry
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11940Patch, Vendor Advisory

Published

Dec 8, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2017-11934Microsoft Office 2013 RT SP1, Microsoft Office 2013 SP1, and…
• CVE-2017-11935Microsoft Office 2016 Click-to-Run (C2R) allows a remote cod…
• CVE-2017-11936Microsoft SharePoint Enterprise Server 2016 allows an elevat…
• CVE-2017-11937The Microsoft Malware Protection Engine running on Microsoft…
• CVE-2017-11939Microsoft Office 2016 Click-to-Run (C2R) allows an informati…
• CVE-2017-1194IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is v…
• CVE-2017-1195IBM Curam Social Program Management 6.0, 6.1, 6.2, and 7.0 c…
• CVE-2017-1196IBM BigFix Compliance (TEMA SUAv1 SCA SCM) 1.9.70 does not r…
• CVE-2017-1197IBM BigFix Compliance (TEMA SUAv1 SCA SCM) uses an inadequat…
• CVE-2017-1198IBM BigFix Compliance 1.7 through 1.9.91 (TEMA SUAv1 SCA SCM…3.7
• CVE-2017-1199IBM InfoSphere Master Data Management Server 10.0, 11.0, 11.…
• CVE-2017-1200IBM BigFix Compliance 1.7 through 1.9.91 (TEMA SUAv1 SCA SCM…3.7