CVE-2025-15271

HIGH

Fontforge - Improper Array Index Validation

Title source: rule
STIX 2.1

Description

FontForge SFD File Parsing Improper Validation of Array Index 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 a write past the end of an allocated array. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-28562.

Scores

CVSS v3 8.8
EPSS 0.0020
EPSS Percentile 41.7%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-129
Status published
Products (1)
fontforge/fontforge 2025-11-17
Published Dec 31, 2025
Tracked Since Feb 18, 2026