CVE-2025-70303

Name: CVE-2025-70303
Creator: NVD / NIST
Published: 2026-01-15T19:16:04.35+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.19%

Last modified Jun 17, 2026

CVE-2025-70303 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.19% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

0.19%

8.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-122

Affected Software

Vendor	Product	Versions
Gpac	Gpac	2.4.0

References

https://github.com/zakkanijia/POC/blob/main/gpac_uncv/GPAC_UNCV_CPAT.mdExploit, Third Party Advisory

Timeline

Published: Jan 15, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is 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.

How severe is CVE-2025-70303?

CVE-2025-70303 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.

How do I fix CVE-2025-70303?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-70303?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST