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.

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.

EPSS: 0.005 (37.9th percentile) — read the EPSS interpretation.

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.

Affected products

Gpac — versions 2.4
N/a — versions n/a

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cve@mitre.org (Exploit, Third Party Advisory, Mitigation)
af854a3a-2127-422b-91ae-364da2661108

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.