Vulnerability record/PUBLISHED/Published Nov 9, 2026 19:11:11 UTC

CVE-2026-125188

FFmpeg through 9.0.2 contains a heap out-of-bounds read vulnerability in libavcodec/proresenc_anatoliy.c that occurs when the prores_aw encoder processes interlaced, odd-height frames. Attackers can supply odd-height video that causes subimage_with_fill_template() to fill padding rows from memory before the fill_y buffer, leaking heap contents into the encoded output.

Base score2.0/ 10

SeverityLowCVSS 4.0

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes

Base severityLow

Attack vectorLocalAV

Attack complexityHighAC

Attack requirementsPresentAT

Privileges requiredNonePR

User interactionPassiveUI

Vulnerable system confidentialityLowVC

Vulnerable system integrityNoneVI

Vulnerable system availabilityNoneVA

Subsequent system confidentialityNoneSC

Subsequent system integrityNoneSI

Subsequent system availabilityNoneSA

CVSS vector stringCVSS: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 communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering AuthorityVulnCheck

Last updatedNov 10, 2026 15:51:23 UTC

PublishedNov 9, 2026 19:11:11 UTC

ReservedNov 9, 2026 18:15:08 UTC

Credits

Zheng Yu @ Depthfirst
Joshua Rogers (AISLE Research)
Michael Niedermayer