CVE-2020-14212 Memory corruption in n/a
A heap-based buffer overflow in FFmpeg allows attackers to execute arbitrary code or cause denial of service via crafted media files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-14212?
CVE-2020-14212 is a high-severity memory corruption vulnerability in Ffmpeg Ffmpeg, published on 16 Jun 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
FFmpeg through 4.3 has a heap-based buffer overflow in avio_get_str in libavformat/aviobuf.c because dnn_backend_native.c calls ff_dnn_load_model_native and a certain index check is omitted.
Weakness: CWE-787
Which versions are affected by CVE-2020-14212?
It affects 1 product.
Products include Ffmpeg Ffmpeg.
How do I fix CVE-2020-14212?
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-2020-14212 being exploited?
There is no known exploitation of CVE-2020-14212 in the wild and no public exploit code.
Other vulnerabilities in Ffmpeg Ffmpeg
Sources
Also known as CLEANSTART-2024-SP40407, DEBIAN-CVE-2020-14212, GHSA-3xj6-rmxw-8hpw, JLSEC-2025-109.