CVE-2026-125252

MediumCVSS 4.7/10Last modified Nov 10, 2026

Description

FFmpeg through 9.0.2 contains a memory leak vulnerability in libavcodec/vaapi_decode.c that allows attackers to exhaust memory by supplying streams with slice parse errors. Attackers can craft H.264 or other VAAPI-decoded video where later slices fail to parse on every frame, continuously leaking VA parameter and slice buffers plus driver and heap memory.

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-401

Affected software

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

VendorProductVersions
FFmpegFFmpeg<= 9.0.2

References

Timeline

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

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CVE-2026-125252: Medium severity, CVSS 4.7 | Vulnix