---
id: CVE-2025-55647
title: >-
  An Out-of-Memory in the mp4_mux_cenc_insert_pssh function (filters/mux_isom.c)
  of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via
  supplying a crafted MP4 file.
summary: >-
  An Out-of-Memory in the mp4_mux_cenc_insert_pssh function (filters/mux_isom.c)
  of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via
  supplying a crafted MP4 file.
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'
cwe:
  - CWE-190
vendor: gpac
product: gpac
affected:
  - gpac < 26.02.0
patched:
  - gpac 26.02.0
published: '2026-06-15'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T10:10:00.193'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-55647'
references:
  - url: 'https://infosec.exchange/@sigdevel/116736795058798433'
    label: cve@mitre.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/06/13/7'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00243
epssPercentile: 0.14266
ingestedAt: '2026-10-13T10:22:03.536Z'
---

## Overview

An Out-of-Memory in the mp4_mux_cenc_insert_pssh function (filters/mux_isom.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

## Affected

- `gpac < 26.02.0`

## Remediation

Upgrade past the affected range:

- `gpac 26.02.0`