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VULNERABILITIES

CVE-2025-55640 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA: CISA-ADPCVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
http://www.openwall.com/lists/oss-security/2026/10/17/2 CVE
https://github.com/gpac/gpac/commit/321624f28d19a413449fd1718d1eb59037f8f7fc [email protected]Source CodeVendor
https://github.com/gpac/gpac/issues/3261 [email protected]ExploitIssue TrackingTechnical DescriptionVendor
https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/25/25_poc.mp4 [email protected]Exploit
https://infosec.exchange/@sigdevel/116769271709415444 [email protected]AdvisoryExploitRemedy

Weakness Enumeration

CWE-IDCWE NameSource
CWE-122Heap-based Buffer OverflowCISA-ADP

Affected Products

ProductVersions
GPAC MP4Box
2.4

CPE

  • cpe:2.3:a:gpac:mp4box:*:*:*:*:*:*:*:*

Remediation

  • Upgrade: 321624f28d19a413449fd1718d1eb59037f8f7fcmoderate effort

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2025-55640
NVD Published Date:
Oct 16, 2026
NVD Last Modified:
Oct 28, 2026
Source:
[email protected]
CVE-2025-55640 Details - Not Deferred