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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
2026-06-16
Advisory published
2026-06-15
Advisory updated
2026-06-16

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].

Sources and references

Verified primary and authoritative sources

  • CVE-2025-55648 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-55648

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-55648 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-55648

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.