CVE-2025-55651 — MEDIUM (5.5)

Vulnerability Description

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 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Gpac	Gpac	2.4

Related Weaknesses (CWE)

CWE-476

References

https://infosec.exchange/@sigdevel/116710512103919834ExploitMitigationThird Party Advisory
http://www.openwall.com/lists/oss-security/2026/06/13/18
https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/4/4_poc.mp4Exploit

FAQ

What is CVE-2025-55651?

CVE-2025-55651 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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.

How severe is CVE-2025-55651?

CVE-2025-55651 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-55651?

Check the references section above for vendor advisories and patch information. Affected products include: Gpac Gpac.