An elevation of privilege vulnerability exists in Windows Defender that leads arbitrary…
Priority LOW 36Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An elevation of privilege vulnerability exists in Windows Defender that leads arbitrary file deletion on the system.To exploit the vulnerability, an attacker would first have to log on to the system, aka 'Microsoft Windows Defender Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1170.
Why it matters now
EPSS 0.00885 59th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Microsoft Forefront Endpoint Protection | 2010 | — | No fix listed | CNA |
| Microsoft | Microsoft System Center | Endpoint Protection; 2012 R2 Endpoint Protection; 2012 Endpoint Protection | — | No fix listed | CNA |
| Microsoft | Microsoft Security Essentials | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1909 for 32-bit Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1909 for x64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1909 for ARM64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server, version 1909 (Server Core installation) | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1803 for 32-bit Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1803 for x64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server, version 1803 (Server Core Installation) | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1803 for ARM64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1809 for 32-bit Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1809 for x64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1809 for ARM64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server 2019 | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server 2019 (Server Core installation) | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1709 for 32-bit Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1709 for x64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1709 for ARM64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1903 for 32-bit Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1903 for x64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1903 for ARM64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server, version 1903 (Server Core installation) | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 for 32-bit Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 for x64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1607 for 32-bit Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 10 Version 1607 for x64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server 2016 | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server 2016 (Server Core installation) | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 7 for 32-bit Systems | Service Pack 1 | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 7 for x64-based Systems | Service Pack 1 | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 8.1 for 32-bit systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows 8.1 for x64-based systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows RT 8.1 | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server 2008 for 32-bit Systems | Service Pack 2 | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server 2008 for 32-bit Systems (Server Core installation) | Service Pack 2 | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server 2008 for Itanium-Based Systems | Service Pack 2 | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server 2008 R2 for Itanium-Based Systems | Service Pack 1 | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server 2008 R2 for x64-based Systems | Service Pack 1 | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server 2008 R2 for x64-based Systems (Server Core installation) | Service Pack 1 | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server 2012 | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server 2012 (Server Core installation) | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server 2012 R2 | all versions | — | No fix listed | CNA |
| Microsoft | Windows Defender on Windows Server 2012 R2 (Server Core installation) | all versions | — | No fix listed | CNA |
- Microsoft Forefront Endpoint Protection VendorMicrosoft Affected 2010 Fixed in — No fix listed CNA
- Microsoft System Center VendorMicrosoft Affected Endpoint Protection; 2012 R2 Endpoint Protection; 2012 Endpoint Protection Fixed in — No fix listed CNA
- Microsoft Security Essentials VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1909 for 32-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1909 for x64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1909 for ARM64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows Server, version 1909 (Server Core installation) VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1803 for 32-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1803 for x64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows Server, version 1803 (Server Core Installation) VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1803 for ARM64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1809 for 32-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1809 for x64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1809 for ARM64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows Server 2019 VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows Server 2019 (Server Core installation) VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1709 for 32-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1709 for x64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1709 for ARM64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1903 for 32-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1903 for x64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1903 for ARM64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows Server, version 1903 (Server Core installation) VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 for 32-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 for x64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1607 for 32-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 10 Version 1607 for x64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows Server 2016 VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows Server 2016 (Server Core installation) VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 7 for 32-bit Systems VendorMicrosoft Affected Service Pack 1 Fixed in — No fix listed CNA
- Windows Defender on Windows 7 for x64-based Systems VendorMicrosoft Affected Service Pack 1 Fixed in — No fix listed CNA
- Windows Defender on Windows 8.1 for 32-bit systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows 8.1 for x64-based systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows RT 8.1 VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows Server 2008 for 32-bit Systems VendorMicrosoft Affected Service Pack 2 Fixed in — No fix listed CNA
- Windows Defender on Windows Server 2008 for 32-bit Systems (Server Core installation) VendorMicrosoft Affected Service Pack 2 Fixed in — No fix listed CNA
- Windows Defender on Windows Server 2008 for Itanium-Based Systems VendorMicrosoft Affected Service Pack 2 Fixed in — No fix listed CNA
- Windows Defender on Windows Server 2008 R2 for Itanium-Based Systems VendorMicrosoft Affected Service Pack 1 Fixed in — No fix listed CNA
- Windows Defender on Windows Server 2008 R2 for x64-based Systems VendorMicrosoft Affected Service Pack 1 Fixed in — No fix listed CNA
- Windows Defender on Windows Server 2008 R2 for x64-based Systems (Server Core installation) VendorMicrosoft Affected Service Pack 1 Fixed in — No fix listed CNA
- Windows Defender on Windows Server 2012 VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows Server 2012 (Server Core installation) VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows Server 2012 R2 VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Defender on Windows Server 2012 R2 (Server Core installation) VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 25
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:windows_defender:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* | 1607 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* | 1709 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* | 1803 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* | 1809 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:* | 1903 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:* | 1909 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:microsoft:windows_defender:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* Versions 1607 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* Versions 1709 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* Versions 1803 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* Versions 1809 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:* Versions 1903 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:* Versions 1909 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Show 15 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:* | r2 sp1 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* | r2 sp1 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* | r2 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:* | 1803 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:* | 1903 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:* | 1909 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:a:microsoft:forefront_endpoint_protection_2010:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:security_essentials:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:system_center_endpoint_protection:2012:*:*:*:*:*:*:* | 2012 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:system_center_endpoint_protection:2012:r2:*:*:*:*:*:* | 2012 r2 | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:* Versions r2 sp1 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* Versions r2 sp1 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* Versions r2 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:* Versions 1803 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:* Versions 1903 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:* Versions 1909 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:a:microsoft:forefront_endpoint_protection_2010:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:security_essentials:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:system_center_endpoint_protection:2012:*:*:*:*:*:*:* Versions 2012 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:system_center_endpoint_protection:2012:r2:*:*:*:*:*:* Versions 2012 r2 Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-1163
- 2026-10-03 Alias added: GHSA-r3xg-94cc-pwx3
More Microsoft Forefront Endpoint Protection 2010 vulnerabilities
- TI-2018-00915 Out-of-bounds write in Microsoft Windows Defender CVSS 3.1HIGH 8.8
- TI-2019-00976 A denial of service vulnerability exists when Microsoft Defender improperly handles… CVSS 3.1HIGH 7.5
- TI-2020-01134 Incorrect permission assignment in Microsoft Forefront Endpoint Protection CVSS 3.1HIGH 7.8
- TI-2011-00036 Microsoft Malware Protection Engine before 1.1.6603.0, as used in Microsoft Malicious… CVSS 2.0HIGH 7.2
- TI-2020-01420 An elevation of privilege vulnerability exists when the MpSigStub.exe for Defender allows… CVSS 3.1HIGH 7.1
- TI-2020-00971 An elevation of privilege vulnerability exists when the MpSigStub.exe for Defender allows… CVSS 3.1HIGH 7.1
Sources
- CVE-2020-1163 · CVE Program
- CVE-2020-1163 · NVD
- FIRST EPSS
- GHSA-r3xg-94cc-pwx3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences