CVE-2026-125245

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 memory leak vulnerability in ff_mjpeg_decode_sof() in libavcodec/mjpegdec.c, which overwrites the hwaccel_picture_private pointer without freeing it. Attackers can supply crafted MJPEG streams with repeated SOF markers or failing frames to leak hwaccel private data and hardware buffers under VAAPI or NVDEC decoding.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
FFmpeg FFmpeg 0
FFmpeg FFmpeg 0

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

0.16%
Raw Score 0.001560
Percentile 4.8%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00156
2026-11-12
0.00156
2026-11-10
0.00156

Intelligence Sources

mitre ref →
nvd ref →