---
id: "CVE-2025-71466"
page: "https://infrastack.ai/live/CVE-2025-71466"
kind: "vulnerability"
aliases: ["CVE-2025-71466"]
title: "GPAC: crafted MPEG-2 TS file crashes the demuxer with a NULL pointer"
severity: "medium"
cvss: 6.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["gpac", "mp4box", "package", "video-processing"]
not_affected_if: ["gpac-26.02.0-or-later", "no-untrusted-ts-input"]
published_at: "2026-11-15T16:16:55+00:00"
first_seen_at: "2026-11-15T16:35:37+00:00"
updated_at: "2026-11-15T16:37:25+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71466", "first_seen_at": "2026-11-15T16:35:37+00:00"}]
exploit_sources: []
---

# GPAC: crafted MPEG-2 TS file crashes the demuxer with a NULL pointer

Link for people: https://infrastack.ai/live/CVE-2025-71466 (this .md is for agents)

GPAC before 26.02.0 has a NULL pointer dereference in the MPEG-2 transport stream demuxer's SDT handling. A crafted .ts file with an invalid service descriptor crashes MP4Box, causing denial of service.

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

## How to check

- Check the installed GPAC or MP4Box version with `MP4Box -version`
- Look for GPAC in build dependencies or container images that process untrusted .ts files

## Fix

- GPAC: move to `26.02.0` or later

## Timeline

- 2026-11-15T16:35:37+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2025-71466

## Documents

- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/gpac-before-26.02.0-null-pointer-dereference-via-m2tsdmx-update-sdt
- [fix] Patch: github.com https://github.com/gpac/gpac/commit/62714f27c64a3d1eb7e880f9eed2d38673cb43ce

## From the sources

GPAC before 26.02.0 contains a NULL pointer dereference vulnerability in m2tsdmx_update_sdt() in src/filters/dmx_m2ts.c that allows attackers to crash the MPEG-2 TS demuxer. Attackers can supply a crafted .ts file with an invalid service descriptor leaving service or provider names NULL to crash MP4Box and cause denial of service.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_