CVE-2020-0938

Name: CVE-2020-0938
Creator: NVD / NIST
Published: 2020-04-15T15:15:16.573+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10Actively ExploitedEPSS 69.17%

Last modified Jun 17, 2026

CVE-2020-0938 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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-2020-1020.. CISA has confirmed active exploitation in the wild. EPSS estimates a 69.17% chance of exploitation in the next 30 days.

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-2020-1020.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

69.17%

99.3th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 3, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Microsoft	Windows 10 1507	All versions	—
Microsoft	Windows 10 1607	All versions	—
Microsoft	Windows 10 1709	All versions	—
Microsoft	Windows 10 1803	All versions	—
Microsoft	Windows 10 1809	All versions	—
Microsoft	Windows 10 1903	All versions	—
Microsoft	Windows 10 1909	All versions	—
Microsoft	Windows 7	All versions	Sp1
Microsoft	Windows 8.1	All versions	—
Microsoft	Windows Rt 8.1	All versions	—
Microsoft	Windows Server 1803	All versions	—
Microsoft	Windows Server 1903	All versions	—
Microsoft	Windows Server 1909	All versions	—
Microsoft	Windows Server 2008	All versions	Sp2
Microsoft	Windows Server 2008	r2	Sp1
Microsoft	Windows Server 2012	All versions	—
Microsoft	Windows Server 2012	r2	—
Microsoft	Windows Server 2016	All versions	—
Microsoft	Windows Server 2019	All versions	—

References

http://packetstormsecurity.com/files/161299/Apple-CoreText-libFontParser.dylib-Stack-Corruption.htmlThird Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0938Patch, Vendor Advisory
http://packetstormsecurity.com/files/161299/Apple-CoreText-libFontParser.dylib-Stack-Corruption.htmlThird Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0938Patch, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0938US Government Resource

Timeline

Published: Apr 15, 2020
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-0938?

How severe is CVE-2020-0938?

CVE-2020-0938 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 69.17% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2020-0938?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-0938?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST