cve.bz

CVE-2026-125206

2.0 lowEPSS 0.1%

Low (2.0) in ffmpeg ffmpeg. EPSS 0.1% estimated probability of exploitation activity in the next 30 days.

FFmpeg through 9.0.2 contains an out-of-bounds read vulnerability in the prores_ks encoder's get_alpha_data() that reads before the blocks buffer for interlaced frames with odd heights. Attackers can supply video with alpha and odd height encoded to interlaced ProRes 4444, causing out-of-bounds memory to be encoded into the output alpha plane.

Severity

CVSS 4.0

2.0 low
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

2.5 low
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
EPSS
0.1% estimated probability of exploitation activity in the next 30 days; 2nd percentile. Scored 2026-11-10. A forecast for this CVE across the internet, not for your own systems.
CWE
CWE-127 Buffer Under-read
Published
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
FFmpegthrough 9.0.2

References

Check your stackJSON