Buffer Overflow Vulnerability in Bento4 by Axiomatic Systems
CVE-2026-88376

7.5HIGH

Key Information:

Vendor

Axiomatic Systems

Status
Bento4
Vendor
CVE Published:
24 September 2026

What is CVE-2026-88376?

Bento4 version 1.6.0.0 is susceptible to an integer underflow vulnerability within the AP4_AvccAtom::Create() and AP4_HvccAtom::Create() methods. If an MP4 file is crafted with an avcC or hvcC atom that specifies a size less than the atom header size, it may trigger a payload-size calculation to overflow. This situation can lead to improper buffer allocation and copying processes, resulting in a termination of the application, which may subsequently cause a denial of service.

References

https://github.com/axiomatic-systems/Bento4/issues/1091

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.