CVE-2025-8584 libav AVI File Parser buffer.c av_buffer_unref null pointer dereference
A local attacker can cause a denial of service via null pointer dereference in libav's AVI 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-2025-8584?
CVE-2025-8584 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 classified as problematic was found in libav up to 12.3. Affected by this vulnerability is the function av_buffer_unref of the file libavutil/buffer.c of the component AVI File Parser. The manipulation leads to null pointer dereference. Local access is required to approach this attack. 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-2025-8584?
It affects 1 product.
Products include Libav Libav.
How do I fix CVE-2025-8584?
No fix has been published for CVE-2025-8584 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-8584 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8584 exists.
Other vulnerabilities in Libav Libav
Sources
Also known as GHSA-vvj3-mv49-x94g, UBUNTU-CVE-2025-8584.