CVE-2025-70303 Memory corruption in n/a
A heap overflow in GPAC allows attackers to cause a Denial of Service via a crafted MP4 file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-70303?
CVE-2025-70303 is a medium-severity memory corruption vulnerability in Gpac Gpac, published on 15 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-122
Which versions are affected by CVE-2025-70303?
It affects 1 product.
Products include Gpac Gpac.
How do I fix CVE-2025-70303?
No fix has been published for CVE-2025-70303 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-70303 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-70303 exists.
Other vulnerabilities in Gpac Gpac
Sources
Also known as DEBIAN-CVE-2025-70303, GHSA-gr5c-q6rh-x7c6, UBUNTU-CVE-2025-70303.