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CVE-2020-1020: Microsoft Windows Adobe Font Manager Library Remote Code Execution Vulnerability
Microsoft Windows · in CISA KEV since 2021-11-03
2021-11-03added to KEV
2022-05-03federal remediation due date
65.04%EPSS exploit probability (30 days) 99.2th percentile
8.8 HIGHCVSS 3.1
Unknownknown ransomware use
567days from NVD publication to KEV
What it is
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 (CISA)
Apply updates per vendor instructions.
| CWE | CWE-787 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD published | 2020-04-15 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2020-1020.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.