CVE-2025-55640

A heap buffer overflow in the stbl_AddSize function (isomedia/stbl_write.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/gpac/gpac/commit/321624f28d19a413449fd1718d1eb59037f8f7fc
https://github.com/gpac/gpac/issues/3261
https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/25/25_poc.mp4
https://infosec.exchange/@sigdevel/116769271709415444
http://www.openwall.com/lists/oss-security/2026/10/17/2

Configurations

No configuration.

History

28 Oct 2026, 14:10

Type	Values Removed	Values Added
Summary		(es) Un desbordamiento de búfer de pila en la función stbl_AddSize (isomedia/stbl_write.c) de GPAC MP4Box v2.4 permite a los atacantes causar una denegación de servicio (DoS) mediante el suministro de un archivo MP4 manipulado.

26 Oct 2026, 18:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
CWE		CWE-122

17 Oct 2026, 18:16

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/10/17/2 -

16 Oct 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-16 19:16

Updated : 2026-10-28 14:10

NVD link : CVE-2025-55640

Mitre link : CVE-2025-55640

CVE.ORG link : CVE-2025-55640

JSON object : View

Products Affected

No product.

CWE

CWE-122

Heap-based Buffer Overflow

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