NULL pointer dereference in Ffmpeg
CVE-2026-125215
FFmpeg 7.1 through 9.0.2 contains a NULL pointer dereference vulnerability in ff_dovi_rpu_generate() in libavcodec/dovi_rpuenc.c that allows attackers to crash applications via crafted Dolby Vision RPU metadata. Attackers can supply streams with default or alternating omitted DM blocks to the dovi_rpu bitstream filter with compression enabled, causing denial of service.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24514 (issue-tracking)
- code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25606 (issue-tracking)
- github.com/FFmpeg/FFmpeg (product)
- github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/dovi_rpuenc.c (technical-description)
- github.com/FFmpeg/FFmpeg/commit/11c4b420183cb2d6cd4afaa53de57d400a45e09e (patch)
- github.com/FFmpeg/FFmpeg/commit/971ea9d6a2a9ae4c770936f0569cf40720d4c304 (patch)
- www.vulncheck.com/advisories/ffmpeg-7.1-through-9.0.2-null-pointer-dereference-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-125215?
- CVE-2026-125215 is a medium-severity vulnerability in Ffmpeg, classified under NULL Pointer Dereference. CVSS score: 4.7/10. Published 2026-11-09.
- How severe is CVE-2026-125215?
- Medium severity. CVSS v3 base score is 4.7 out of 10.