HIGH
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'
Published Apr 15, 2020
7.1
HIGHCVSS 3.1
EPSS 0.71%
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'.
Affected products
-
- Version 2010StatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version 2012 Endpoint ProtectionStatusaffectedConstraints-
- Version 2012 R2 Endpoint ProtectionStatusaffectedConstraints-
- Version Endpoint ProtectionStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows 10 Version 1607 for x64-based Systems Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows 10 Version 1709 for ARM64-based Systems Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows 10 Version 1709 for x64-based Systems Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows 10 Version 1803 for ARM64-based Systems Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows 10 Version 1803 for x64-based Systems Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows 10 Version 1809 for ARM64-based Systems Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows 10 Version 1809 for x64-based Systems Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows 10 Version 1903 for ARM64-based Systems Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows 10 Version 1903 for x64-based Systems Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows 10 Version 1909 for ARM64-based Systems Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows 10 Version 1909 for x64-based Systems Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version Service Pack 1StatusaffectedConstraints-
- Version
-
- Version Service Pack 1StatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows Server 2008 R2 for Itanium-Based Systems Defaultn/a
- Version Service Pack 1StatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows Server 2008 R2 for x64-based Systems Defaultn/a
- Version Service Pack 1StatusaffectedConstraints-
- Version
-
- Version Service Pack 2StatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows Server 2008 for Itanium-Based Systems Defaultn/a
- Version Service Pack 2StatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows Server 2012 (Server Core installation) Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows Server 2012 R2 (Server Core installation) Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows Server 2016 (Server Core installation) Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows Server 2019 (Server Core installation) Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows Server, version 1803 (Server Core Installation) Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows Server, version 1903 (Server Core installation) Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Windows Defender on Windows Server, version 1909 (Server Core installation) Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version Service Pack 1StatusaffectedConstraints-
- Version Service Pack 2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
Configuration 1
AND
- n/a
Running on/with
OR
- n/a
- 1607
- 1709
- 1803
- 1809
- 1903
- 1909
- n/a
- n/a
- n/a
- n/a
- r2
- r2
- n/a
- r2
- n/a
- 1803
- 1903
- 1909
- n/a
Configuration 2
OR
- n/a
- n/a
- n/a
- 2012
- 2012
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
7.1 HIGH NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact High
No CVSS v3.0 score for this CVE.
6.6 MEDIUM NVD
AV:L/AC:L/Au:N/C:N/I:C/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.71% 0.00711
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.00711
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.71% (0.00711) | 51.92th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.68% (0.00681) | 47.42th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.25% (0.00252) | 46.62th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00043) | 11.28th | v3 (v2023.03.01) |
| Jun 12, 2024 | 0.04% (0.00043) | 9.42th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00043) | 7.39th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.15% (0.01150) | 60.47th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.15% (0.01150) | 59.39th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.15% (0.01150) | 57.39th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.37% (0.01372) | 45.59th | v2 (v2022.01.01) |
| Feb 3, 2022 | 17.64% (0.17642) | 92.83th | v1 |
| Jan 6, 2022 | 17.64% (0.17642) | 92.74th | v1 |
| Sep 1, 2021 | 4.56% (0.04557) | 86.26th | v1 |
| Apr 14, 2021 | 4.56% (0.04557) | 0.00th | v1 |
Weaknesses (0)
No CWE recorded.
References (1)
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1002 x_refsource_MISCPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1002 | x_refsource_MISCPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Apr 15, 2020
Updated Aug 4, 2024
Reserved Nov 4, 2019
Link CVE-2020-1002
CISA Vulnrichment
Updated n/a