# CVE-2025-55654: GPAC MP4Box use-after-free in gf_filter_pid_get_packet

Source: https://junglewise.ai/threats/cve-2025-55654-a-use-after-free-in-the-gf-filter-pid-get-packet-function-filter  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-19. Updated: 2026-10-19  
License: CC BY 4.0 with a link back

CVE-2025-55654 · Severity: info · Published 2026-10-19

GPAC MP4Box is a multimedia processing tool that handles video and audio file formats. A use-after-free memory vulnerability in packet filtering logic allows an attacker to crash the application by providing a specially crafted media file, disrupting media processing workflows.

Technologies: [Gpac MP4Box](https://junglewise.ai/threats/technologies/mp4box). Vendors: [Gpac](https://junglewise.ai/threats/vendors/gpac).

## Quick answers

**Is CVE-2025-55654 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-55654 being exploited in the wild.

**How severe is CVE-2025-55654?** Informational severity, published 19 October 2026.

**Which products and versions are affected?** Gpac MP4Box v2.4.

**Is there a fix for CVE-2025-55654?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-55654 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2025-55654?** Check whether you run Gpac MP4Box at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A use-after-free vulnerability exists in the gf_filter_pid_get_packet function within filter_core/filter_pid.c, triggered by processing a crafted media file. The vulnerability is reachable via local file input and results in denial of service through application crash. A fix has been released in the GPAC repository.

## Affected products

- GPAC MP4Box v2.4

## Timeline

- 2026-10-19: disclosed

## References

- [https://github.com/gpac/gpac/commit/0ccd2927c7145f5ab0352c5b15f787757b34eb18](https://github.com/gpac/gpac/commit/0ccd2927c7145f5ab0352c5b15f787757b34eb18)
- [https://github.com/gpac/gpac/issues/3249](https://github.com/gpac/gpac/issues/3249)

## Related threats

- [GPAC MP4Box segmentation fault in dump_isom_saps](https://junglewise.ai/threats/cve-2025-55667-a-segmentation-violation-in-the-dump-isom-saps-function-mp4box)
- [GPAC MP4Box floating point exception in gf_parse_lfrac](https://junglewise.ai/threats/cve-2025-55653-gpac-mp4box-v2-4-was-discovered-to-contain-a-floating-point)
- [GPAC MP4Box heap buffer overflow in stbl_AddSize](https://junglewise.ai/threats/cve-2025-55640-a-heap-buffer-overflow-in-the-stbl-addsize-function-isomedia-stbl)
- [GPAC MP4Box use-after-free in gf_node_deactivate_ex](https://junglewise.ai/threats/cve-2026-90827-gpac-mp4box-use-after-free-in-gf-node-deactivate-ex)
- [GPAC MP4Box out-of-bounds read in gf_node_del](https://junglewise.ai/threats/cve-2026-90826-gpac-mp4box-out-of-bounds-read-in-gf-node-del)