Deserialization of Untrusted Data Affecting fontforge package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.32% (25th percentile)

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  • Snyk IDSNYK-UBUNTU2004-FONTFORGE-14849788
  • published6 Jan 2026
  • disclosed31 Dec 2025

Introduced: 31 Dec 2025

CVE-2025-15276  (opens in a new tab)
CWE-502  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:20.04 fontforge.

NVD Description

Note: Versions mentioned in the description apply only to the upstream fontforge package and not the fontforge package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

FontForge SFD File Parsing Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FontForge. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of SFD files. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28198.

CVSS Base Scores

version 3.1