CVE-2020-14212

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-06-16 · updated 2026-06-17
Weakness: CWE-787

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.

Affected products

FFmpeg: from 4.3 before 4.3.1 — fixed in 4.3.1

How to fix

Upgrade to a fixed version: FFmpeg 4.3.1. Check the vendor advisory for mitigations.

References

https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=1463
https://security.gentoo.org/glsa/202007-58
https://trac.ffmpeg.org/ticket/8716
https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=1463
https://security.gentoo.org/glsa/202007-58
https://trac.ffmpeg.org/ticket/8716

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