NULL pointer dereference in Gpac

CVE-2025-55657

A NULL pointer dereference in the gf_odf_vvc_cfg_write_bs function (odf/descriptors.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (37.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-55657: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

  • Gpac — versions 2.4

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-55657?
CVE-2025-55657 is a high-severity vulnerability in Gpac, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-06-09.
How severe is CVE-2025-55657?
High severity. CVSS v3 base score is 7.5 out of 10.