CVE-2026-125216 FFmpeg through 9.0.2 DPX Encoder NULL Pointer Dereference via encode_gbrp12()

Medium 6.8 Published 9 Nov 2026 Updated 9 Nov 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-125216?

CVE-2026-125216 is a medium-severity vulnerability in FFmpeg, published on 9 Nov 2026.

Official description

FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in libavcodec/dpxenc.c that allows attackers to crash the process via unvalidated bits_per_raw_sample for RGB48 input. Attackers can supply a 12-bit RGB image, such as JPEG 2000, that when transcoded to DPX selects encode_gbrp12() and dereferences NULL plane pointers, causing denial of service.

Weakness: CWE-476

Which versions are affected by CVE-2026-125216?

How do I fix CVE-2026-125216?

No fix has been published for CVE-2026-125216 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-125216 being exploited?

There is no known exploitation of CVE-2026-125216 in the wild and no public exploit code.

Sources

Also known as GHSA-27wh-6w4j-g6cx, UBUNTU-CVE-2026-125216.