Microsoft Windows
CVE-2020-1013 — Group Policy Elevation of Privilege Vulnerability
Executive Summary
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. 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. The security update addresses the vulnerability by enforcing Kerberos authentication for certain calls over LDAP.
Overview
7.5
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
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_network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.7
EPSS Score
0.06405
probability of exploitation in the next 30 days
0.9279 percentile - updated 2026-06-21
View on FIRST.org
Affected Products
30 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 for 32-bit Systems | 4577049 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 for x64-based Systems | 4577049 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1607 for 32-bit Systems | 4577015 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1607 for x64-based Systems | 4577015 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1709 for 32-bit Systems | 4577041 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1709 for ARM64-based Systems | 4577041 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1709 for x64-based Systems | 4577041 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1803 for 32-bit Systems | 4577032 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1803 for ARM64-based Systems | 4577032 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1803 for x64-based Systems | 4577032 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1809 for 32-bit Systems | 4570333 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1809 for ARM64-based Systems | 4570333 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1809 for x64-based Systems | 4570333 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1903 for 32-bit Systems | 4574727 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1903 for ARM64-based Systems | 4574727 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1903 for x64-based Systems | 4574727 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1909 for 32-bit Systems | 4574727 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1909 for ARM64-based Systems | 4574727 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1909 for x64-based Systems | 4574727 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 2004 for 32-bit Systems | 4571756 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 2004 for ARM64-based Systems | 4571756 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 2004 for x64-based Systems | 4571756 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 7 for 32-bit Systems Service Pack 1 4577051 (Monthly Rollup) 4577053 (Security Only) Important Elevation of Privilege 4571729 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4577051 4577053 Windows 7 for x64-based Systems Service Pack 1 4577051 (Monthly Rollup) 4577053 (Security Only) Important Elevation of Privilege 4571729 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4577051 4577053 Windows 8.1 for 32-bit systems 4577066 (Monthly Rollup) 4577071 (Security Only) Important Elevation of Privilege 4571703 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4577066 4577071 4577066 Windows 8.1 for x64-based systems 4577066 (Monthly Rollup) 4577071 (Security Only) Important Elevation of Privilege 4571703 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4577066 4577071 4577066 Windows RT 8.1 | 4577066 (Monthly Rollup) |
Important | Elevation of Privilege | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 4577064 (Monthly Rollup) 4577070 (Security Only) Important Elevation of Privilege 4571730 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4577064 4577070 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4577064 (Monthly Rollup) 4577070 (Security Only) Important Elevation of Privilege 4571730 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4577064 4577070 Windows Server 2008 for x64-based Systems Service Pack 2 4577064 (Monthly Rollup) 4577070 (Security Only) Important Elevation of Privilege 4571730 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4577064 4577070 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4577064 (Monthly Rollup) 4577070 (Security Only) Important Elevation of Privilege 4571730 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4577064 4577070 Windows Server 2008 R2 for x64-based Systems Service Pack 1 4577051 (Monthly Rollup) 4577053 (Security Only) Important Elevation of Privilege 4571729 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4577051 4577053 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4577051 (Monthly Rollup) 4577053 (Security Only) Important Elevation of Privilege 4571729 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4577051 4577053 Windows Server 2012 4577038 (Monthly Rollup) 4577048 (Security Only) Important Elevation of Privilege 4571736 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4577038 4577048 Windows Server 2012 (Server Core installation) 4577038 (Monthly Rollup) 4577048 (Security Only) Important Elevation of Privilege 4571736 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4577038 4577048 Windows Server 2012 R2 4577066 (Monthly Rollup) 4577071 (Security Only) Important Elevation of Privilege 4571703 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4577066 4577071 4577066 Windows Server 2012 R2 (Server Core installation) 4577066 (Monthly Rollup) 4577071 (Security Only) Important Elevation of Privilege 4571703 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4577066 4577071 4577066 Windows Server 2016 | 4577015 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server 2016 (Server Core installation) | 4577015 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server 2019 | 4570333 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server 2019 (Server Core installation) | 4570333 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 1903 (Server Core installation) | 4574727 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 1909 (Server Core installation) | 4574727 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 2004 (Server Core installation) | 4571756 (Security Update) |
Important | Elevation of Privilege | Yes |
Patches
8 patches
| Article | Type | Restart |
|---|---|---|
4577049 |
Security Update | Yes |
4577015 |
Security Update | Yes |
4577041 |
Security Update | Yes |
4577032 |
Security Update | Yes |
4570333 |
Security Update | Yes |
4574727 |
Security Update | Yes |
4571756 |
Security Update | Yes |
4577066 |
Monthly Rollup | Yes |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
References
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