Is CVE-2026-36907 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-36907 being exploited in the wild.

How severe is CVE-2026-36907?

Informational severity, with a CVSS score of 5.5, published 26 June 2026.

Which products and versions are affected?

Axiomatic Systems Bento4 before v1.8.9.

Is there a fix for CVE-2026-36907?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-36907 attacked?

It is attacked with local access, in a software library.

Am I affected by CVE-2026-36907?

Check whether you run Axiomatic Systems Bento4 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-36907: Axiomatic-systems Bento4 stack overflow in AP4_StsdAtom

CVE-2026-36907 · Severity: info · CVSS 5.5 · Published 2026-06-26

Bento4 is a C++ library and toolset used for processing MP4 and other multimedia files. A vulnerability in how it handles specific media metadata (atoms) allows an attacker to crash applications using the library by providing a specially crafted MP4 file. This could lead to a denial-of-service condition for users opening malicious media content.

Technologies: Axiomatic Systems Bento4. Vendors: Axiomatic Systems.

Quick answers

Is CVE-2026-36907 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-36907 being exploited in the wild.
How severe is CVE-2026-36907?: Informational severity, with a CVSS score of 5.5, published 26 June 2026.
Which products and versions are affected?: Axiomatic Systems Bento4 before v1.8.9.
Is there a fix for CVE-2026-36907?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-36907 attacked?: It is attacked with local access, in a software library.
Am I affected by CVE-2026-36907?: Check whether you run Axiomatic Systems Bento4 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stack overflow vulnerability exists in the Bento4 library within the AP4_StsdAtom::AP4_StsdAtom component. The issue is triggered during the parsing of Sample Description (stsd) atoms in MP4 files. An attacker can exploit this by providing a malformed MP4 file that causes excessive recursion or improper memory allocation during atom factory processing, leading to a crash (Denial of Service). The vulnerability is reachable via local file execution or any application that utilizes Bento4 to parse untrusted media streams. The issue is addressed in version 1.8.9.

Affected products

axiomatic-systems Bento4 before v1.8.9

Timeline

2026-06-26: disclosed
2026-06-26: advisory

References

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