Vulnerability · Published Jun 15, 2026 · Assigned by mitre

CVE-2025-55661

Medium 5.5

In plain English

A medium-severity heap buffer overflow in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)0.3%top 82.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A heap buffer overflow in the Opus audio stream parser component of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

Weakness: CWE-122 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

https://infosec.exchange/@sigdevel/116733907390103029
http://www.openwall.com/lists/oss-security/2026/06/13/13