Vulnerability record/PUBLISHED/Published Nov 9, 2026 19:11:59 UTC
CVE-2026-125254
FFmpeg through 9.0.2 contains a division by zero vulnerability in the VVC decoder because ff_vvc_slice_rpl() fails to validate num_ref_idx_active against built reference list entries. Attackers can supply a crafted VVC bitstream whose excess reference indices yield a zero POC difference in ff_vvc_mv_scale(), crashing the decoding process.
Base score6.8/ 10
SeverityMediumCVSS 4.0
Exploitability / impact
CVSS metric breakdown
Base severityMedium
Attack vectorLocalAV
Attack complexityLowAC
Attack requirementsNoneAT
Privileges requiredNonePR
User interactionPassiveUI
Vulnerable system confidentialityNoneVC
Vulnerable system integrityNoneVI
Vulnerable system availabilityHighVA
Subsequent system confidentialityNoneSC
Subsequent system integrityNoneSI
Subsequent system availabilityNoneSA
CVSS vector string
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NCVSS 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 9, 2026 20:56:48 UTC
PublishedNov 9, 2026 19:11:59 UTC
ReservedNov 9, 2026 18:15:31 UTC
Credits
- Joshua Rogers (AISLE Research)
- Michael Niedermayer