HIGH
Group Policy Elevation of Privilege Vulnerability
Published Sep 11, 2020
8.1
HIGHCVSS 3.1
EPSS 6.40%
Description
<p>An elevation of privilege vulnerability exists when Microsoft Windows processes group policy updates. An attacker who successfully exploited this vulnerability could potentially escalate permissions or perform additional privileged actions on the target machine.</p> <p>To exploit this vulnerability, an attacker would need to launch a man-in-the-middle (MiTM) attack against the traffic passing between a domain controller and the target machine. An attacker could then create a group policy to grant administrator rights to a standard user.</p> <p>The security update addresses the vulnerability by enforcing Kerberos authentication for certain calls over LDAP.</p>
Affected products
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
- Version
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- Version 10.0.0StatusaffectedConstraints<publication
- Version
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
- Version
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- Version 6.1.0StatusaffectedConstraints<publication
- Version
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- Version 6.1.0StatusaffectedConstraints<publication
- Version
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- Version 6.3.0StatusaffectedConstraints<publication
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- Version 6.0.0StatusaffectedConstraints<publication
- Version
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- Version 6.1.0StatusaffectedConstraints<publication
- Version
- Vendor Microsoft Product Windows Server 2008 R2 Service Pack 1 (Server Core installation) Defaultn/a
- Version 6.0.0StatusaffectedConstraints<publication
- Version
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- Version 6.0.0StatusaffectedConstraints<publication
- Version
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- Version 6.0.0StatusaffectedConstraints<publication
- Version
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- Version 6.2.0StatusaffectedConstraints<publication
- Version
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- Version 6.2.0StatusaffectedConstraints<publication
- Version
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- Version 6.3.0StatusaffectedConstraints<publication
- Version
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- Version 6.3.0StatusaffectedConstraints<publication
- Version
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- Version 10.0.0StatusaffectedConstraints<publication
- Version
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- Version 10.0.0StatusaffectedConstraints<publication
- Version
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- Version 10.0.0StatusaffectedConstraints<publication
- Version
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- Version 10.0.0StatusaffectedConstraints<publication
- Version
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- Version 10.0.0StatusaffectedConstraints<publication
- Version
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- Version 10.0.0StatusaffectedConstraints<publication
- Version
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- Version 10.0.0StatusaffectedConstraints<publication
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| Microsoft | Windows 10 Version 1507 | n/a |
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| Microsoft | Windows 10 Version 1607 | n/a |
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| Microsoft | Windows 10 Version 1709 | n/a |
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| Microsoft | Windows 10 Version 1709 for 32-bit Systems | n/a |
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| Microsoft | Windows 10 Version 1803 | n/a |
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| Microsoft | Windows 10 Version 1809 | n/a |
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| Microsoft | Windows 10 Version 1903 for 32-bit Systems | n/a |
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| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | n/a |
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| Microsoft | Windows 10 Version 1903 for x64-based Systems | n/a |
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| Microsoft | Windows 10 Version 1909 | n/a |
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| Microsoft | Windows 10 Version 2004 | n/a |
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| Microsoft | Windows 7 | n/a |
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| Microsoft | Windows 7 Service Pack 1 | n/a |
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| Microsoft | Windows 8.1 | n/a |
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| Microsoft | Windows Server 2008 Service Pack 2 | n/a |
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| Microsoft | Windows Server 2008 R2 Service Pack 1 | n/a |
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| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) | n/a |
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| Microsoft | Windows Server 2008 Service Pack 2 | n/a |
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| Microsoft | Windows Server 2008 Service Pack 2 (Server Core installation) | n/a |
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| Microsoft | Windows Server 2012 | n/a |
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| Microsoft | Windows Server 2012 (Server Core installation) | n/a |
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| Microsoft | Windows Server 2012 R2 | n/a |
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| Microsoft | Windows Server 2012 R2 (Server Core installation) | n/a |
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| Microsoft | Windows Server 2016 | n/a |
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| Microsoft | Windows Server 2016 (Server Core installation) | n/a |
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| Microsoft | Windows Server 2019 | n/a |
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| Microsoft | Windows Server 2019 (Server Core installation) | n/a |
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| Microsoft | Windows Server version 2004 | n/a |
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| Microsoft | Windows Server, version 1903 (Server Core installation) | n/a |
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| Microsoft | Windows Server, version 1909 (Server Core installation) | n/a |
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OR
- n/a
- 1607
- 1709
- 1803
- 1809
- 1903
- 1909
- 2004
- n/a
- n/a
- n/a
- n/a
- r2
- n/a
- r2
- n/a
- 1903
- 1909
- 2004
- n/a
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.
8.1 HIGH NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
2 other sources (CVE.org, NVD) ▾
7.5 HIGH CVE.org
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Attack Vector Adjacent
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
Exploit Maturity Proof of Concept
7.5 HIGH NVD
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Adjacent
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
No CVSS v3.0 score for this CVE.
9.3 HIGH NVD
AV:N/AC:M/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
6.40% 0.06405
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.06405
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 (42 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.40% (0.06405) | 93.47th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.40% (0.06405) | 92.77th | v5 (v2026.06.15) |
| Jun 2, 2026 | 29.82% (0.29819) | 96.73th | v4 (v2025.03.14) |
| Jan 25, 2026 | 32.17% (0.32166) | 96.70th | v4 (v2025.03.14) |
| Jan 18, 2026 | 33.89% (0.33894) | 96.83th | v4 (v2025.03.14) |
| Jan 15, 2026 | 32.17% (0.32166) | 96.68th | v4 (v2025.03.14) |
| Jan 8, 2026 | 29.21% (0.29211) | 96.43th | v4 (v2025.03.14) |
| Dec 28, 2025 | 26.47% (0.26470) | 96.15th | v4 (v2025.03.14) |
| Dec 27, 2025 | 25.03% (0.25027) | 96.00th | v4 (v2025.03.14) |
| Nov 21, 2025 | 26.47% (0.26470) | 96.12th | v4 (v2025.03.14) |
| Nov 18, 2025 | 39.82% (0.39816) | 97.15th | v4 (v2025.03.14) |
| Nov 8, 2025 | 26.47% (0.26470) | 96.10th | v4 (v2025.03.14) |
| Nov 6, 2025 | 21.30% (0.21295) | 95.45th | v4 (v2025.03.14) |
| Oct 30, 2025 | 16.98% (0.16981) | 94.69th | v4 (v2025.03.14) |
| Oct 28, 2025 | 19.11% (0.19113) | 95.06th | v4 (v2025.03.14) |
| Oct 27, 2025 | 17.95% (0.17950) | 94.88th | v4 (v2025.03.14) |
| Oct 3, 2025 | 19.11% (0.19113) | 95.15th | v4 (v2025.03.14) |
| Oct 1, 2025 | 20.40% (0.20402) | 95.37th | v4 (v2025.03.14) |
| Sep 20, 2025 | 19.18% (0.19182) | 95.15th | v4 (v2025.03.14) |
| Sep 15, 2025 | 17.95% (0.17950) | 94.91th | v4 (v2025.03.14) |
| Sep 13, 2025 | 16.32% (0.16320) | 94.61th | v4 (v2025.03.14) |
| Aug 2, 2025 | 17.95% (0.17950) | 94.92th | v4 (v2025.03.14) |
| May 5, 2025 | 15.90% (0.15904) | 94.33th | v4 (v2025.03.14) |
| Mar 30, 2025 | 20.60% (0.20597) | 95.10th | v4 (v2025.03.14) |
| Mar 29, 2025 | 46.27% (0.46267) | 96.53th | v4 (v2025.03.14) |
| Mar 17, 2025 | 20.60% (0.20597) | 95.11th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00049) | 20.91th | v3 (v2023.03.01) |
| May 11, 2024 | 0.05% (0.00049) | 18.10th | v3 (v2023.03.01) |
| Jan 1, 2024 | 0.08% (0.00080) | 33.57th | v3 (v2023.03.01) |
| Aug 18, 2023 | 0.33% (0.00330) | 67.29th | v3 (v2023.03.01) |
| May 15, 2023 | 0.35% (0.00350) | 67.62th | v3 (v2023.03.01) |
| Apr 18, 2023 | 0.28% (0.00276) | 63.34th | v3 (v2023.03.01) |
| Mar 23, 2023 | 0.28% (0.00281) | 63.54th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.21% (0.00207) | 56.83th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.63% (0.02632) | 82.21th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.63% (0.02632) | 80.45th | v2 (v2022.01.01) |
| Mar 30, 2022 | 23.96% (0.23965) | 95.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 22.48% (0.22480) | 94.38th | 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-2020-1013 x_refsource_MISCPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1013 | x_refsource_MISCPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Sep 11, 2020
Updated Aug 4, 2024
Reserved Nov 4, 2019
Link CVE-2020-1013
CISA Vulnrichment
Updated n/a