CVE-2025-55647 Denial of service in n/a
Attackers can cause a denial of service in GPAC MP4Box by supplying a crafted MP4 file, leading to out-of-memory conditions.
- 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-2025-55647?
CVE-2025-55647 is a medium-severity denial of service vulnerability in Gpac Gpac, published on 15 Jun 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
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.
Weakness: CWE-190
Which versions are affected by CVE-2025-55647?
It affects 1 product.
Products include Gpac Gpac.
How do I fix CVE-2025-55647?
No fix has been published for CVE-2025-55647 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-55647 being exploited?
There is no known exploitation of CVE-2025-55647 in the wild and no public exploit code.
Other vulnerabilities in Gpac Gpac
Sources
Also known as DEBIAN-CVE-2025-55647, GHSA-44vh-hwch-5r66, UBUNTU-CVE-2025-55647.