CVE-2025-55639

Null Pointer Dereference in GPAC MP4Box Causes DoS

Published Jun 23, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
GPAC MP4Box v2.4 was discovered to contain a NULL pointer dereference in the gf_isom_add_track_kind() function at isomedia/isom_write.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted MP4 file.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Null Pointer Dereference in GPAC MP4Box Causes DoS
Type Values Removed Values Added
Title Null Pointer Dereference in GPAC MP4Box Causes Denial of Service
Type Values Removed Values Added
Title Null Pointer Dereference in GPAC MP4Box Causes Denial of Service
Type Values Removed Values Added
Title NULL Pointer Dereference in GPAC MP4Box Causing Denial of Service
Type Values Removed Values Added
First Time appeared Gpac
Gpac mp4box
Vendors & Products Gpac
Gpac mp4box
Type Values Removed Values Added
Title NULL Pointer Dereference in GPAC MP4Box Causing Denial of Service
Type Values Removed Values Added
Weaknesses CWE-476
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description GPAC MP4Box v2.4 was discovered to contain a NULL pointer dereference in the gf_isom_add_track_kind() function at isomedia/isom_write.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted MP4 file.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jun 26, 2026, 6:36 PM
Reserved
Aug 13, 2025, 12:00 AM
Status
Analyzed
Published
Jun 23, 2026, 4:16 PM
Modified
Oct 12, 2026, 9:10 PM