CVE-2026-125071

MediumCVSS 4.7/10Last modified Nov 10, 2026

Description

FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in libavcodec/jvdec.c that allows attackers to crash applications by supplying oversized JV video packets. Attackers can pass a roughly 268435460-byte packet through the libavcodec API, overflowing the bit count so decode_frame() reads from a NULL buffer and causes denial of service.

Metrics

CVSS 3.1 4.7/10CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-252

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published: Nov 9, 2026
Last modified: Nov 10, 2026
NVD status: Awaiting Analysis

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