What is CVE-2025-55667?

CVE-2025-55667 is a medium-severity vulnerability in N/a, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2026-10-19.

How severe is CVE-2025-55667?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Buffer overflow in N/a

CVE-2025-55667

A segmentation violation in the dump_isom_saps function (/mp4box/filedump.c) of GPAC MP4Box v2.5-DEV-rev1672-gc9a31d0e1-masterallows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

Vulnerability class: Buffer Overflow

Published 2026-10-19 · last modified 2026-10-19.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Frequently asked questions

What is CVE-2025-55667?: CVE-2025-55667 is a medium-severity vulnerability in N/a, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2026-10-19.
How severe is CVE-2025-55667?: Medium severity. CVSS v3 base score is 5.5 out of 10.