---
id: CVE-2025-55653
title: >-
  GPAC MP4Box v2.4 was discovered to contain a floating point exception in the
  gf_parse_lfrac function (utils/error.c)
summary: >-
  GPAC MP4Box v2.4 was discovered to contain a floating point exception in the
  gf_parse_lfrac function (utils/error.c). Processing a crafted MP4 file
  containing a zero-denominator fraction string causes gf_parse_lfrac() to
  divide by zero, …
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cvssSource: adp
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-20T19:24:23.758846Z'
published: '2026-10-16'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T19:25:01.689Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-55653'
references:
  - url: 'https://github.com/gpac/gpac/issues/3247'
  - url: 'https://github.com/gpac/gpac/commit/4bbb6e5'
  - url: 'https://infosec.exchange/@sigdevel/116769079013422405'
tags:
  - cve.org
epss: 0.00183
epssPercentile: 0.07775
ingestedAt: '2026-10-16T18:43:08.630Z'
---

## Overview

GPAC MP4Box v2.4 was discovered to contain a floating point exception in the gf_parse_lfrac function (utils/error.c). Processing a crafted MP4 file containing a zero-denominator fraction string causes gf_parse_lfrac() to divide by zero, terminating the process with SIGFPE.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.