Microsoft Graphics Component
CVE-2020-1253 — Win32k Elevation of Privilege Vulnerability
Executive Summary
An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The update addresses this vulnerability by correcting how the Windows kernel-mode driver handles objects in memory.
Overview
6.7
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
More Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
High
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: 5.8
EPSS Score
0.00899
probability of exploitation in the next 30 days
0.54904 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 | 4561649 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 for x64-based Systems | 4561649 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1607 for 32-bit Systems | 4561616 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1607 for x64-based Systems | 4561616 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1709 for 32-bit Systems | 4561602 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1709 for ARM64-based Systems | 4561602 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1709 for x64-based Systems | 4561602 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1803 for 32-bit Systems | 4561621 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1803 for ARM64-based Systems | 4561621 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1803 for x64-based Systems | 4561621 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1809 for 32-bit Systems | 4561608 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1809 for ARM64-based Systems | 4561608 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1809 for x64-based Systems | 4561608 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1903 for 32-bit Systems | 4560960 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1903 for ARM64-based Systems | 4560960 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1903 for x64-based Systems | 4560960 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1909 for 32-bit Systems | 4560960 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1909 for ARM64-based Systems | 4560960 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1909 for x64-based Systems | 4560960 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 2004 for 32-bit Systems | 4557957 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 2004 for ARM64-based Systems | 4557957 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 2004 for x64-based Systems | 4557957 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 7 for 32-bit Systems Service Pack 1 4561643 (Monthly Rollup) 4561669 (Security Only) Important Elevation of Privilege 4556836 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4561643 4561669 Windows 7 for x64-based Systems Service Pack 1 4561643 (Monthly Rollup) 4561669 (Security Only) Important Elevation of Privilege 4556836 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4561643 4561669 Windows 8.1 for 32-bit systems 4561666 (Monthly Rollup) 4561673 (Security Only) 4561666 (Monthly Rollup) Important Elevation of Privilege 4556846 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows 8.1 for x64-based systems 4561666 (Monthly Rollup) 4561673 (Security Only) 4561666 (Monthly Rollup) Important Elevation of Privilege 4556846 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows RT 8.1 4561666 (Monthly Rollup) 4561666 (Monthly Rollup) Important Elevation of Privilege 4556846 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 4561670 (Monthly Rollup) 4561645 (Security Only) Important Elevation of Privilege 4556860 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4561670 4561645 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4561670 (Monthly Rollup) 4561645 (Security Only) Important Elevation of Privilege 4556860 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4561670 4561645 Windows Server 2008 for x64-based Systems Service Pack 2 4561670 (Monthly Rollup) 4561645 (Security Only) Important Elevation of Privilege 4556860 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4561670 4561645 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4561670 (Monthly Rollup) 4561645 (Security Only) Important Elevation of Privilege 4556860 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4561670 4561645 Windows Server 2008 R2 for x64-based Systems Service Pack 1 4561643 (Monthly Rollup) 4561669 (Security Only) Important Elevation of Privilege 4556836 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4561643 4561669 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4561643 (Monthly Rollup) 4561669 (Security Only) Important Elevation of Privilege 4556836 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4561643 4561669 Windows Server 2012 4561612 (Monthly Rollup) 4561674 (Security Only) Important Elevation of Privilege 4556840 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2012 (Server Core installation) 4561612 (Monthly Rollup) 4561674 (Security Only) Important Elevation of Privilege 4556840 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2012 R2 4561666 (Monthly Rollup) 4561673 (Security Only) 4561666 (Monthly Rollup) Important Elevation of Privilege 4556846 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2012 R2 (Server Core installation) 4561666 (Monthly Rollup) 4561673 (Security Only) 4561666 (Monthly Rollup) Important Elevation of Privilege 4556846 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2016 | 4561616 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server 2016 (Server Core installation) | 4561616 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server 2019 | 4561608 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server 2019 (Server Core installation) | 4561608 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 1803 (Server Core Installation) | 4561621 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 1903 (Server Core installation) | 4560960 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 1909 (Server Core installation) | 4560960 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 2004 (Server Core installation) | 4557957 (Security Update) |
Important | Elevation of Privilege | Yes |
Patches
7 patches
| Article | Type | Restart |
|---|---|---|
4561649 |
Security Update | Yes |
4561616 |
Security Update | Yes |
4561602 |
Security Update | Yes |
4561621 |
Security Update | Yes |
4561608 |
Security Update | Yes |
4560960 |
Security Update | Yes |
4557957 |
Security Update | 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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