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PatchSiren cyber security CVE debrief

CVE-2025-55648 GPAC CVE debrief

A heap buffer overflow vulnerability was discovered in the gf_opus_parse_packet_header function (media_tools/av_parsers.c) of GPAC MP4Box v2.4. This vulnerability, tracked as CVE-2025-55648, allows attackers to cause a Denial of Service (DoS) by supplying a crafted MP4 file. The vulnerability has a CVSS score of 5.5 and a severity rating of MEDIUM.

Vendor
GPAC
Product
MP4Box
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-15
Original CVE updated
2026-06-15
Advisory published
2026-06-15
Advisory updated
2026-06-15

Who should care

Users of GPAC MP4Box v2.4 should be aware of this vulnerability and take steps to mitigate it.

Technical summary

The vulnerability is caused by a heap buffer overflow in the gf_opus_parse_packet_header function. This can be exploited by providing a specially crafted MP4 file, leading to a Denial of Service (DoS).

Defensive priority

MEDIUM

Recommended defensive actions

  • Update GPAC MP4Box to a version that is not vulnerable.
  • Use caution when handling MP4 files from untrusted sources.

Evidence notes

The CVE record was obtained from the official CVE website [resourceLinkAnnotations:cve-org]. Additional information was obtained from the National Vulnerability Database [resourceLinkAnnotations:nvd].

Official resources

CVE-2025-55648 was published on 2026-06-15T20:16:23.817Z and modified on 2026-06-15T21:16:33.813Z.