CVE Watch—

CVE-2020-1020

Microsoft Windows Adobe Font Manager Library Remote Code Execution Vulnerability

CVSS

—

No CVSS

EPSS

65.0%

p99

KEV

YES

Nov 3, 2021

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

65.0%EPSS · 30 days65.0%

2026-09-162026-10-14

KEV catalog record

Product

Microsoft / Windows

Vulnerability

Microsoft Windows Adobe Font Manager Library Remote Code Execution Vulnerability

Added to KEV

Nov 3, 2021

Remediate by

May 3, 2022

Known ransomware use

Summary description

Microsoft Windows Adobe Font Manager Library contains an unspecified vulnerability when handling specially crafted multi-master fonts (Adobe Type 1 PostScript format) that allows for remote code execution for all systems except Windows 10. 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.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2020-1020

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