CVE-2025-55641
Received Received - Intake
NULL Pointer Dereference in GPAC MP4Box via Crafted MP4 File

Publication date: 2026-06-15

Last updated on: 2026-06-15

Assigner: MITRE

Description
A NULL pointer dereference in the gf_isom_copy_sample_info function (isomedia/isom_write.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.
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Meta Information
Published
2026-06-15
Last Modified
2026-06-15
Generated
2026-06-16
AI Q&A
2026-06-15
EPSS Evaluated
N/A
NVD
CVE-2025-55641
EUVD
EUVD-2025-210141
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
gpac mp4box 2.4
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability is a NULL pointer dereference in the function gf_isom_copy_sample_info within the isomedia/isom_write.c file of GPAC MP4Box version 2.4. It occurs when the software processes a specially crafted MP4 file, leading to a crash or Denial of Service (DoS) condition.

Impact Analysis

An attacker can exploit this vulnerability by providing a maliciously crafted MP4 file to the affected software, causing it to crash or become unavailable. This results in a Denial of Service (DoS), potentially disrupting normal operations or services that rely on GPAC MP4Box.

Compliance Impact

The vulnerability described is a NULL pointer dereference leading to a Denial of Service (DoS) in GPAC MP4Box. It does not involve unauthorized access, data leakage, or modification of data.

Since the vulnerability impacts availability but does not affect confidentiality or integrity, its direct impact on compliance with standards like GDPR or HIPAA—which primarily focus on protecting personal data confidentiality and integrity—is limited.

However, availability is also a component of some regulations, so a DoS could potentially affect compliance if it disrupts critical services handling regulated data.

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