---
id: "CVE-2025-55654"
kind: "vulnerability"
aliases: ["CVE-2025-55654"]
title: "GPAC MP4Box: use-after-free crash from a crafted file"
severity: "medium"
cvss: 5.5
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["gpac", "media-processing", "mp4box", "package"]
not_affected_if: ["no-untrusted-input"]
published_at: "2026-10-19T18:16:58+00:00"
first_seen_at: "2026-10-23T21:57:18+00:00"
updated_at: "2026-10-25T04:12:46+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55654", "first_seen_at": "2026-10-23T21:57:18+00:00"}]
---

# GPAC MP4Box: use-after-free crash from a crafted file

GPAC MP4Box v2.4 has a use-after-free in the gf_filter_pid_get_packet function in filter_core/filter_pid.c. An attacker who supplies a crafted file can crash the tool, causing denial of service.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Run `MP4Box -version` to see whether the installed build is v2.4.
- unknown

## Fix

- unknown

## Timeline

- 2026-10-23T21:57:18+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2025-55654

## From the sources

A use-after-free in the gf_filter_pid_get_packet function (filter_core/filter_pid.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted file.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_