Dashboard / CVE-2026-125191

CVE-2026-125191

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 26/100
Published: 2026-11-09 Modified: 2026-11-10 First seen: 2026-11-09 Status: active

Attack Surface

No Auth

CVSS Vector Breakdown

AV: Local
AC: High
PR: None
UI: Passive
S: X
AT: Present
VC: None
VI: None
VA: High

Description

FFmpeg through 9.0.2 contains a reference count leak in libavcodec/v4l2_buffers.c that allows attackers to deadlock the V4L2 mem2mem decoder on multi-plane capture formats. Attackers can supply crafted H.264, HEVC, or VP9 streams with resolution changes, making ff_v4l2_m2m_codec_reinit() wait forever and hang the decoding application.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
FFmpeg FFmpeg 0
FFmpeg FFmpeg 0

References & Advisories (5)

Bug Bounty Relevance

26 / 100
✓ No authentication

CVSS Score

5.7 / 10.0 v4.0
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.15%
Raw Score 0.001550
Percentile 4.7%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00155
2026-11-12
0.00155
2026-11-10
0.00155

Intelligence Sources

mitre ref →
nvd ref →

External Links