CVE-2025-55659
Medium
Description
A NULL pointer dereference in the ctts_box_write function (isomedia/box_code_base.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.
SeverityMedium
CVSS6.5
Exploit probability—
ProductGpac
PublishedJun 9, 2026
First seenJun 9, 2026
Weakness typeCWE-476NULL pointer dereference
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gpac gpac | 2.4 | — |
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