CVE-2020-0938

Adobe Font Manager Library Remote Code Execution Vulnerability

CVE-2020-0938 is fixed in 41 products on 1 platform, first by KB4550929, released April 14, 2020. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021. Patch Radar priority: Patch now.

Patch nowCISA KEV
CVSS
7.8
Important
Exploitation
Exploited
Reported by the vendor
CISA KEV
Nov 3, 2021
Federal due date May 3, 2022
EPSS
0.6895
99th percentile

<p>A remote code execution vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles a specially-crafted multi-master font - Adobe Type 1 PostScript format.</p> <p>For all systems except Windows 10, an attacker who successfully exploited the vulnerability could execute code remotely. For systems running Windows 10, an attacker who successfully exploited the vulnerability could execute code in an AppContainer sandbox context with limited privileges and capabilities. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>There are multiple ways an attacker could exploit the vulnerability, such as convincing a user to open a specially crafted document or viewing it in the Windows Preview pane.</p> <p>The update addresses the vulnerability by correcting how the Windows Adobe Type Manager Library handles Type1 fonts.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Windows 10 Version 1607 for 32-bit Systems 14393.3630 KB4550929 Apr 14, 2020
Windows 10 Version 1607 for x64-based Systems 14393.3630 KB4550929 Apr 14, 2020
Windows 10 Version 1709 for 32-bit Systems 16299.1806 KB4550927 Apr 14, 2020
Windows 10 Version 1709 for ARM64-based Systems 16299.1806 KB4550927 Apr 14, 2020
Windows 10 Version 1709 for x64-based Systems 16299.1806 KB4550927 Apr 14, 2020
Windows 10 Version 1803 for 32-bit Systems 17134.1425 KB4550922 Apr 14, 2020
Windows 10 Version 1803 for ARM64-based Systems 17134.1425 KB4550922 Apr 14, 2020
Windows 10 Version 1803 for x64-based Systems 17134.1425 KB4550922 Apr 14, 2020
Windows 10 Version 1809 for 32-bit Systems 17763.1158 KB4549949 Apr 14, 2020
Windows 10 Version 1809 for ARM64-based Systems 17763.1158 KB4549949 Apr 14, 2020
Windows 10 Version 1809 for x64-based Systems 17763.1158 KB4549949 Apr 14, 2020
Windows 10 Version 1903 for 32-bit Systems KB4549951 Apr 14, 2020
Windows 10 Version 1903 for ARM64-based Systems KB4549951 Apr 14, 2020
Windows 10 Version 1903 for x64-based Systems KB4549951 Apr 14, 2020
Windows 10 Version 1909 for 32-bit Systems KB4549951 Apr 14, 2020
Windows 10 Version 1909 for ARM64-based Systems KB4549951 Apr 14, 2020
Windows 10 Version 1909 for x64-based Systems KB4549951 Apr 14, 2020
Windows 10 for 32-bit Systems 10240.18545 KB4550930 Apr 14, 2020
Windows 10 for x64-based Systems 10240.18545 KB4550930 Apr 14, 2020
Windows 7 for 32-bit Systems Service Pack 1 KB4550965 Apr 14, 2020
Windows 7 for 32-bit Systems Service Pack 1 KB4550964 Apr 14, 2020
Windows 7 for x64-based Systems Service Pack 1 KB4550965 Apr 14, 2020
Windows 7 for x64-based Systems Service Pack 1 KB4550964 Apr 14, 2020
Windows 8.1 for 32-bit systems KB4550961 Apr 14, 2020
Windows 8.1 for 32-bit systems KB4550970 Apr 14, 2020
Windows 8.1 for x64-based systems KB4550961 Apr 14, 2020
Windows 8.1 for x64-based systems KB4550970 Apr 14, 2020
Windows RT 8.1 KB4550961 Apr 14, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4550965 Apr 14, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4550964 Apr 14, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4550965 Apr 14, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4550964 Apr 14, 2020
Windows Server 2008 for 32-bit Systems Service Pack 2 KB4550957 Apr 14, 2020
Windows Server 2008 for 32-bit Systems Service Pack 2 KB4550951 Apr 14, 2020
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) KB4550957 Apr 14, 2020
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) KB4550951 Apr 14, 2020
Windows Server 2008 for x64-based Systems Service Pack 2 KB4550957 Apr 14, 2020
Windows Server 2008 for x64-based Systems Service Pack 2 KB4550951 Apr 14, 2020
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) KB4550957 Apr 14, 2020
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) KB4550951 Apr 14, 2020
Windows Server 2012 KB4550917 Apr 14, 2020
Windows Server 2012 KB4550971 Apr 14, 2020
Windows Server 2012 (Server Core installation) KB4550917 Apr 14, 2020
Windows Server 2012 (Server Core installation) KB4550971 Apr 14, 2020
Windows Server 2012 R2 KB4550961 Apr 14, 2020
Windows Server 2012 R2 KB4550970 Apr 14, 2020
Windows Server 2012 R2 (Server Core installation) KB4550961 Apr 14, 2020
Windows Server 2012 R2 (Server Core installation) KB4550970 Apr 14, 2020
Windows Server 2016 14393.3630 KB4550929 Apr 14, 2020
Windows Server 2016 (Server Core installation) 14393.3630 KB4550929 Apr 14, 2020
Windows Server 2019 17763.1158 KB4549949 Apr 14, 2020
Windows Server 2019 (Server Core installation) 17763.1158 KB4549949 Apr 14, 2020
Windows Server, version 1803 (Server Core Installation) 17134.1425 KB4550922 Apr 14, 2020
Windows Server, version 1903 (Server Core installation) KB4549951 Apr 14, 2020
Windows Server, version 1909 (Server Core installation) KB4549951 Apr 14, 2020

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.