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High · 8.8 Known exploited Public exploit CVE-2020-1020 EUVD-2020-11916GHSA-jvx5-6596-c2vj

A remote code execution vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles a speciall…

Published Apr 15, 2020 · Updated Oct 21, 2025 · Assigned by microsoft

Vendor: Microsoft Product: Windows Product: Windows 10 Version 1903 for 32-bit Systems Product: Windows 10 Version 1903 for ARM64-based Systems Product: Windows 10 Version 1903 for x64-based Systems Product: Windows 10 Version 1909 for 32-bit Systems Product: Windows 10 Version 1909 for ARM64-based Systems Product: Windows 10 Version 1909 for x64-based Systems Product: Windows Server Product: Windows Server, version 1903 (Server Core installation) Product: Windows Server, version 1909 (Server Core installation) Platform: Windows

Description

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.For all systems except Windows 10, an attacker who successfully exploited the vulnerability could execute code remotely, aka 'Adobe Font Manager Library Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0938.

Affected products

VendorProductAffectedFixed
Microsoft Windows 10 Version 1803 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1803 for ARM64-based Systems, 10 Version 1809 for 32-bit Systems, 10 Version 1809 for x64-based Systems, 10 Version 1809 for ARM64-based Systems, 10 Version 1709 for 32-bit Systems, 10 Version 1709 for x64-based S… —
Microsoft Windows Server version 1803 (Core Installation), 2019, 2019 (Core installation), 2016, 2016 (Core installation), 2008 for 32-bit Systems Service Pack 2, 2008 for 32-bit Systems Service Pack 2 (Core installation), 2008 for Itanium-Based Systems Service Pack 2, 2008 for x64-based Systems Service Pack 2, 2008 for x6… —
Microsoft Windows 10 Version 1909 for 32-bit Systems unspecified —
Microsoft Windows 10 Version 1909 for x64-based Systems unspecified —
Microsoft Windows 10 Version 1909 for ARM64-based Systems unspecified —
Microsoft Windows Server, version 1909 (Server Core installation) unspecified —
Microsoft Windows 10 Version 1903 for 32-bit Systems unspecified —
Microsoft Windows 10 Version 1903 for x64-based Systems unspecified —
Microsoft Windows 10 Version 1903 for ARM64-based Systems unspecified —
Microsoft Windows Server, version 1903 (Server Core installation) unspecified —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 2 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 1

References