CVE-2026-52295 Memory corruption in FFmpeg
An out-of-bounds read in FFmpeg's IAMF writer allows attackers to cause crashes or leak memory contents via crafted media files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-52295?
CVE-2026-52295 is a low-severity memory corruption vulnerability in Ffmpeg Ffmpeg, published on 1 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
FFmpeg before 9.0 has an out-of-bounds read because the copied extradata lacked required padding before GetBitContext-based access in libavformat/iamf_writer.c.
Which versions are affected by CVE-2026-52295?
It affects 1 product.
Products include Ffmpeg Ffmpeg.
How do I fix CVE-2026-52295?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-52295 being exploited?
There is no known exploitation of CVE-2026-52295 in the wild and no public exploit code.
Other vulnerabilities in Ffmpeg Ffmpeg
Sources
Also known as DEBIAN-CVE-2026-52295, GHSA-53pf-4457-qg7g, UBUNTU-CVE-2026-52295.