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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

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Project Subscriptions

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/gpac/gpac/commit/321624f28d19a413449fd1718d1eb59037f8f7fc cve-icon cve-icon
https://github.com/gpac/gpac/issues/3261 cve-icon cve-icon
https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/25/25_poc.mp4 cve-icon cve-icon
https://infosec.exchange/@sigdevel/116769271709415444 cve-icon cve-icon
History

Fri, 16 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
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.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-16T18:07:54.649Z

Reserved: 2025-08-13T00:00:00.000Z

Link: CVE-2025-55640

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-16T19:16:56.243

Modified: 2026-10-16T19:16:56.243

Link: CVE-2025-55640

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses

No weakness.