CVE-2025-55647: Gpac

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

An Out-of-Memory in the mp4_mux_cenc_insert_pssh function (filters/mux_isom.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

Affected products

• Gpac Gpac: before 26.02.0 (fixed in 26.02.0)

Published 2026-06-15. Last modified 2026-06-17.