---
id: CVE-2025-15667
title: A vulnerability was determined in GPAC up to 2.5-DEV
summary: >-
  A vulnerability was determined in GPAC up to 2.5-DEV. This vulnerability
  affects the function gf_isom_nalu_sample_rewrite of the file
  src/isomedia/avc_ext.c of the component MP4Box. This manipulation of the
  argument nalu_out_bs causes do…
severity: low
cvss: 3.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-119
  - CWE-415
published: '2026-07-06'
updated: '2026-10-05'
sourceUpdated: '2026-10-05T16:10:00.443'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-15667'
references:
  - url: 'https://github.com/TimChan2001/pocs/raw/refs/heads/main/poc-gpac-1'
    label: cna@vuldb.com
  - url: 'https://github.com/gpac/gpac/'
    label: cna@vuldb.com
  - url: >-
      https://github.com/gpac/gpac/commit/f29f955f2a3b5e8e507caad3e52319f961bf37bf
    label: cna@vuldb.com
  - url: 'https://github.com/gpac/gpac/issues/3403'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2025-15667'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/846839'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/376292'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/376292/cti'
    label: cna@vuldb.com
tags:
  - nvd
epss: 0.0016
epssPercentile: 0.04508
ingestedAt: '2026-10-05T16:25:58.384Z'
---

## Overview

A vulnerability was determined in GPAC up to 2.5-DEV. This vulnerability affects the function gf_isom_nalu_sample_rewrite of the file src/isomedia/avc_ext.c of the component MP4Box. This manipulation of the argument nalu_out_bs causes double free. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Patch name: f29f955f2a3b5e8e507caad3e52319f961bf37bf. To fix this issue, it is recommended to deploy a patch.

## Remediation

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