MinorCritical vulnerability

CVE-2026-125204 (CVSS 7.3)

NVD · officialPublished Nov 9, 2026Risk 23/100

FFmpeg through 9.0.2 contains a heap buffer overflow in ff_libwebp_get_frame() in libwebpenc_common.c that lets attackers corrupt memory when cr_threshold is set. Attackers can supply crafted media that increases resolution mid-stream, causing memcpy() to write pixel data past the stale reference frame and crash applications.

Technical details

CVSS

7.3

AV:LocalAC:HighPR:NoneUI:Passive

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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