CVE-2020-25690: Fontforge

High severity, CVSS 8.8. EPSS: 1.3% chance of exploitation in the next 30 days.

An out-of-bounds write flaw was found in FontForge in versions before 20200314 while parsing SFD files containing certain LayerCount tokens. This flaw allows an attacker to manipulate the memory allocated on the heap, causing the application to crash or execute arbitrary code. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Affected products

• Fontforge Fontforge: before 20200314 (fixed in 20200314)

Published 2021-02-23. Last modified 2026-06-17.