CVE-2020-0687 — Microsoft Graphics Remote Code Execution Vulnerability
Executive Summary
A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts. An attacker who successfully exploited the vulnerability could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. There are multiple ways an attacker could exploit the vulnerability: The security update addresses the vulnerability by correcting how the Windows font library handles embedded fonts.
Overview
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
EPSS Score
Affected Products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 for 32-bit Systems | 4550930 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 for x64-based Systems | 4550930 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1607 for 32-bit Systems | 4550929 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1607 for x64-based Systems | 4550929 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1709 for 32-bit Systems | 4550927 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1709 for ARM64-based Systems | 4550927 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1709 for x64-based Systems | 4550927 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1803 for 32-bit Systems | 4550922 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1803 for ARM64-based Systems | 4550922 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1803 for x64-based Systems | 4550922 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1809 for 32-bit Systems | 4549949 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1809 for ARM64-based Systems | 4549949 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1809 for x64-based Systems | 4549949 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1903 for 32-bit Systems | 4549951 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1903 for ARM64-based Systems | 4549951 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1903 for x64-based Systems | 4549951 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1909 for 32-bit Systems | 4549951 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1909 for ARM64-based Systems | 4549951 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1909 for x64-based Systems | 4549951 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 7 for 32-bit Systems Service Pack 1 4550964 (Monthly Rollup) 4550965 (Security Only) Critical Remote Code Execution 4540688 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4550964 4550965 Windows 7 for x64-based Systems Service Pack 1 4550964 (Monthly Rollup) 4550965 (Security Only) Critical Remote Code Execution 4540688 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4550964 4550965 Windows 8.1 for 32-bit systems 4550961 (Monthly Rollup) 4550970 (Security Only) Critical Remote Code Execution 4541509 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4550961 4550970 Windows 8.1 for x64-based systems 4550961 (Monthly Rollup) 4550970 (Security Only) Critical Remote Code Execution 4541509 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4550961 4550970 Windows RT 8.1 | 4550961 (Monthly Rollup) |
Critical | Remote Code Execution | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 4550951 (Monthly Rollup) 4550957 (Security Only) Critical Remote Code Execution 4541506 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4550951 4550957 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4550951 (Monthly Rollup) 4550957 (Security Only) Critical Remote Code Execution 4541506 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4550951 4550957 Windows Server 2008 for x64-based Systems Service Pack 2 4550951 (Monthly Rollup) 4550957 (Security Only) Critical Remote Code Execution 4541506 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4550951 4550957 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4550951 (Monthly Rollup) 4550957 (Security Only) Critical Remote Code Execution 4541506 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4550951 4550957 Windows Server 2008 R2 for x64-based Systems Service Pack 1 4550964 (Monthly Rollup) 4550965 (Security Only) Critical Remote Code Execution 4540688 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4550964 4550965 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4550964 (Monthly Rollup) 4550965 (Security Only) Critical Remote Code Execution 4540688 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4550964 4550965 Windows Server 2012 4550917 (Monthly Rollup) 4550971 (Security Only) Critical Remote Code Execution 4541510 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4550917 4550971 Windows Server 2012 (Server Core installation) 4550917 (Monthly Rollup) 4550971 (Security Only) Critical Remote Code Execution 4541510 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4550917 4550971 Windows Server 2012 R2 4550961 (Monthly Rollup) 4550970 (Security Only) Critical Remote Code Execution 4541509 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4550961 4550970 Windows Server 2012 R2 (Server Core installation) 4550961 (Monthly Rollup) 4550970 (Security Only) Critical Remote Code Execution 4541509 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4550961 4550970 Windows Server 2016 | 4550929 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server 2016 (Server Core installation) | 4550929 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server 2019 | 4549949 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server 2019 (Server Core installation) | 4549949 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server, version 1803 (Server Core Installation) | 4550922 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server, version 1903 (Server Core installation) | 4549951 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server, version 1909 (Server Core installation) | 4549951 (Security Update) |
Critical | Remote Code Execution | Yes |
Patches
| Article | Type | Restart |
|---|---|---|
4550930 |
Security Update | Yes |
4550929 |
Security Update | Yes |
4550927 |
Security Update | Yes |
4550922 |
Security Update | Yes |
4549949 |
Security Update | Yes |
4549951 |
Security Update | Yes |
4550961 |
Monthly Rollup | Yes |
Known Exploits
Acknowledgments
(@linhlhq), Hardik Shah, Zhangjie and willJ from cdsrc of Qihoo 360