Microsoft Graphics Component
CVE-2020-0921 — Microsoft Graphics Component Denial of Service Vulnerability
Executive Summary
None
Overview
5.5
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
None
AVAILABILITY
None
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 5.0
EPSS Score
0.01079
probability of exploitation in the next 30 days
0.60688 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 | Information Disclosure | Yes |
| Windows 10 for x64-based Systems | 4577049 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1607 for 32-bit Systems | 4577015 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1607 for x64-based Systems | 4577015 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1709 for 32-bit Systems | 4577041 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1709 for ARM64-based Systems | 4577041 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1709 for x64-based Systems | 4577041 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1803 for 32-bit Systems | 4577032 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1803 for ARM64-based Systems | 4577032 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1803 for x64-based Systems | 4577032 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1809 for 32-bit Systems | 4570333 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1809 for ARM64-based Systems | 4570333 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1809 for x64-based Systems | 4570333 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1903 for 32-bit Systems | 4574727 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1903 for ARM64-based Systems | 4574727 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1903 for x64-based Systems | 4574727 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1909 for 32-bit Systems | 4574727 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1909 for ARM64-based Systems | 4574727 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1909 for x64-based Systems | 4574727 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 2004 for 32-bit Systems | 4571756 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 2004 for ARM64-based Systems | 4571756 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 2004 for x64-based Systems | 4571756 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 7 for 32-bit Systems Service Pack 1 4577051 (Monthly Rollup) 4577053 (Security Only) Important Information Disclosure 4571729 Base: 5.5 Temporal: 5.0 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/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 Information Disclosure 4571729 Base: 5.5 Temporal: 5.0 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes 4577051 4577053 Windows 8.1 for 32-bit systems 4577066 (Monthly Rollup) 4577071 (Security Only) Important Information Disclosure 4571703 Base: 5.5 Temporal: 5.0 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes 4577066 4577071 4577066 Windows 8.1 for x64-based systems 4577066 (Monthly Rollup) 4577071 (Security Only) Important Information Disclosure 4571703 Base: 5.5 Temporal: 5.0 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes 4577066 4577071 4577066 Windows RT 8.1 | 4577066 (Monthly Rollup) |
Important | Information Disclosure | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 4577064 (Monthly Rollup) 4577070 (Security Only) Important Information Disclosure 4571730 Base: 5.5 Temporal: 5.0 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/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 Information Disclosure 4571730 Base: 5.5 Temporal: 5.0 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/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 Information Disclosure 4571730 Base: 5.5 Temporal: 5.0 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/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 Information Disclosure 4571730 Base: 5.5 Temporal: 5.0 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/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 Information Disclosure 4571729 Base: 5.5 Temporal: 5.0 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/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 Information Disclosure 4571729 Base: 5.5 Temporal: 5.0 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes 4577051 4577053 Windows Server 2012 4577038 (Monthly Rollup) 4577048 (Security Only) Important Information Disclosure 4571736 Base: 5.5 Temporal: 5.0 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes 4577038 4577048 Windows Server 2012 (Server Core installation) 4577038 (Monthly Rollup) 4577048 (Security Only) Important Information Disclosure 4571736 Base: 5.5 Temporal: 5.0 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes 4577038 4577048 Windows Server 2012 R2 4577066 (Monthly Rollup) 4577071 (Security Only) Important Information Disclosure 4571703 Base: 5.5 Temporal: 5.0 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes 4577066 4577071 4577066 Windows Server 2012 R2 (Server Core installation) 4577066 (Monthly Rollup) 4577071 (Security Only) Important Information Disclosure 4571703 Base: 5.5 Temporal: 5.0 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes 4577066 4577071 4577066 Windows Server 2016 | 4577015 (Security Update) |
Important | Information Disclosure | Yes |
| Windows Server 2016 (Server Core installation) | 4577015 (Security Update) |
Important | Information Disclosure | Yes |
| Windows Server 2019 | 4570333 (Security Update) |
Important | Information Disclosure | Yes |
| Windows Server 2019 (Server Core installation) | 4570333 (Security Update) |
Important | Information Disclosure | Yes |
| Windows Server, version 1903 (Server Core installation) | 4574727 (Security Update) |
Important | Information Disclosure | Yes |
| Windows Server, version 1909 (Server Core installation) | 4574727 (Security Update) |
Important | Information Disclosure | Yes |
| Windows Server, version 2004 (Server Core installation) | 4571756 (Security Update) |
Important | Information Disclosure | 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
Wayne Low of Fortinet’s FortiGuard Labs
References
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