CVE-2025-15276

HIGH

FontForge - Remote Code Execution via SFD File Parsing

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2025-15276. PoCs published by XiaomingX, ahmedreda38.

AI-analyzed exploit summary This repository contains a functional exploit for CVE-2025-15276, demonstrating an insecure deserialization vulnerability in FontForge's SFD file parsing. The exploit generates a malicious SFD file that, when opened, executes arbitrary commands via Python's pickle deserialization.

Description

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.

Exploits (2)

github WORKING POC 10 stars
by XiaomingX · pythonpoc
https://github.com/XiaomingX/data-cve-poc-py-v1/tree/main/2025/CVE-2025-15276

This repository contains a functional exploit for CVE-2025-15276, demonstrating an insecure deserialization vulnerability in FontForge's SFD file parsing. The exploit generates a malicious SFD file that, when opened, executes arbitrary commands via Python's pickle deserialization.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: FontForge (versions up to and including 20230101)
No auth needed
Prerequisites: Vulnerable FontForge installation · Python 3.x to generate the payload
devstral-2 · analyzed Mar 16, 2026 Full analysis →
nomisec WORKING POC 1 stars
by ahmedreda38 · poc
https://github.com/ahmedreda38/CVE-2025-15276-poc

This repository contains a functional exploit for CVE-2025-15276, demonstrating an insecure deserialization vulnerability in FontForge's SFD file parsing. The exploit generates a malicious SFD file that, when opened, executes arbitrary commands via Python's pickle deserialization.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: FontForge (versions up to and including 20230101)
No auth needed
Prerequisites: Vulnerable FontForge installation · Ability to deliver malicious SFD file to target
devstral-2 · analyzed Mar 16, 2026 Full analysis →

References (1)

Core 1
Core References
Third Party Advisory x_research-advisory
https://www.zerodayinitiative.com/advisories/ZDI-25-1187/

Scores

CVSS v3 7.8
EPSS 0.0033
EPSS Percentile 24.4%
Attack Vector LOCAL
CVSS:3.0/AV:L/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-502
Status published
Products (1)
fontforge/fontforge 20251009
Published Dec 31, 2025
Tracked Since Feb 18, 2026