CVE-2025-15278 HIGH

CVE-2025-15278: FontForge GUtils XBM File Parsing Integer Overflow Remote Code Execution Vulnerability

Vendor Fontforge
Product FontForge
Weakness CWE-190
Published December 31, 2025
Last update December 31, 2025

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

FontForge GUtils XBM File Parsing Integer Overflow 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 pixels within XBM files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27865.

Key dates

02Disclosure timeline

December 31, 2025 CVE published
December 31, 2025 Record updated