CVE-2025-8586 libav MPEG File Parser utils.c ff_seek_frame_binary null pointer dereference
A local attacker can cause a denial of service via null pointer dereference in libav's MPEG parser, affecting unsupported software.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-8586?
CVE-2025-8586 is a medium-severity vulnerability in Libav Libav, published on 5 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability, which was classified as problematic, was found in libav up to 12.3. This affects the function ff_seek_frame_binary of the file /libavformat/utils.c of the component MPEG File Parser. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The bug was initially reported by the researcher to the wrong project. This vulnerability only affects products that are no longer supported by the maintainer.
Which versions are affected by CVE-2025-8586?
It affects 1 product.
Products include Libav Libav.
How do I fix CVE-2025-8586?
No fix has been published for CVE-2025-8586 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-8586 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8586 exists.
Other vulnerabilities in Libav Libav
Sources
Also known as GHSA-hw46-xx2p-6vfg, UBUNTU-CVE-2025-8586.