Dashboard / CVE-2026-125269

CVE-2026-125269

HIGH
MEDIUM Priority: 0.01 BB Relevance: 30/100
Published: 2026-11-09 Modified: 2026-11-10 First seen: 2026-11-09 Status: active

Attack Surface

No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

FFmpeg through 9.0.2 contains a double free vulnerability in libavcodec/cbs_sei.c where cbs_sei_delete_message() leaves a stale extension_data reference that ff_cbs_sei_add_message() reuses. Attackers can supply a crafted H.264 stream with a display orientation SEI message followed by payload extension data, processed by h264_metadata with display_orientation=insert, to corrupt heap memory.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
FFmpeg FFmpeg 0

References & Advisories (5)

Bug Bounty Relevance

30 / 100
✓ No authentication

CVSS Score

7.3 / 10.0 v4.0
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/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

0.13%
Raw Score 0.001290
Percentile 2.6%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00129
2026-11-12
0.00129
2026-11-10
0.00129

Intelligence Sources

mitre ref →
nvd ref →

External Links