Buffer overflow in Gpac

CVE-2025-70303

A heap overflow in the uncv_parse_config() function of GPAC v2.4.0 allows attackers to cause a Denial of Service (DoS) via a crafted MP4 file.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (8.6th percentile) — read the EPSS interpretation.

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.

Affected products

  • Gpac — versions 2.4.0
  • N/a — versions n/a

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-70303?
CVE-2025-70303 is a medium-severity vulnerability in Gpac, classified under Heap-based Buffer Overflow. CVSS score: 5.5/10. Published 2026-01-15.
How severe is CVE-2025-70303?
Medium severity. CVSS v3 base score is 5.5 out of 10.