What is CVE-2025-55651?

CVE-2025-55651 is a medium-severity vulnerability, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2026-06-09.

How severe is CVE-2025-55651?

Medium severity. CVSS v3 base score is 5.5 out of 10.

CVE-2025-55651

CVE-2025-55651

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

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cve@mitre.org
134c704f-9b21-4f2e-91b3-4a467353bcc0

Frequently asked questions

What is CVE-2025-55651?: CVE-2025-55651 is a medium-severity vulnerability, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2026-06-09.
How severe is CVE-2025-55651?: Medium severity. CVSS v3 base score is 5.5 out of 10.