---
id: "CVE-2025-60482"
kind: "vulnerability"
aliases: ["CVE-2025-60482"]
title: "GPAC MP4Box: crafted AC4 file triggers heap use-after-free crash"
severity: "low"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["gpac", "media-processing", "mp4box", "package"]
not_affected_if: ["mp4box-not-used", "no-untrusted-input"]
published_at: "2026-10-19T19:17:03+00:00"
first_seen_at: "2026-10-23T21:57:18+00:00"
updated_at: "2026-10-25T05:10:56+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-60482", "first_seen_at": "2026-10-23T21:57:18+00:00"}]
---

# GPAC MP4Box: crafted AC4 file triggers heap use-after-free crash

GPAC's MP4Box tool has a heap use-after-free in its AC4 descriptor cleanup code (gf_odf_ac4_cfg_clean_list in odf/descriptors.c). A crafted AC4 file can make MP4Box crash, causing a denial of service.

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

## How to check

- Run `MP4Box -version` and compare against the development build named in the advisory: `2.5-DEV-rev1593-gfe88c3545-master`
- Check whether MP4Box processes untrusted AC4 input in a pipeline, such as a media upload or transcoding service

## Fix

- Update GPAC to a release that includes the upstream fix for this issue (fixed version unknown from the sources)
- Until patched, do not feed untrusted AC4 files to MP4Box

## Timeline

- 2026-10-23T21:57:18+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2025-60482

## From the sources

A heap use-after-free in the gf_odf_ac4_cfg_clean_list function (/odf/descriptors.c) of GPAC Project/MP4Box 2.5-DEV-rev1593-gfe88c3545-master allows attackers to cause a Denial of Service (DoS) via supplying a crafted AC4 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_