CVE-2025-55645
Received Received - Intake
Heap Buffer Overflow in GPAC MP4Box

Publication date: 2026-06-15

Last updated on: 2026-06-15

Assigner: MITRE

Description
A heap buffer overflow in the gf_cenc_set_pssh function (isomedia/drm_sample.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-2025-55645
EUVD
EUVD-2025-210145
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
gpac mp4box to 2.4 (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
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Executive Summary

This vulnerability is a heap buffer overflow in the gf_cenc_set_pssh function within the isomedia/drm_sample.c file of GPAC MP4Box version 2.4. It occurs when the function processes a specially crafted MP4 file, leading to memory corruption.

An attacker can exploit this flaw by supplying a malicious MP4 file that triggers the overflow.

Impact Analysis

Exploiting this vulnerability can cause a Denial of Service (DoS) condition, meaning the affected application or system may crash or become unresponsive when processing the crafted MP4 file.

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