Dashboard / CVE-2026-120247

CVE-2026-120247

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 39/100
Published: 2026-11-01 Modified: 2026-11-06 First seen: 2026-11-01 Status: active

Attack Surface

Low Complexity No Auth Conf. Impact

CVSS Vector Breakdown

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

Description

FFmpeg 2.3 through 9.0.2 contains a use of uninitialized resource vulnerability in the Huffyuv decoder that allows attackers to leak heap memory into decoded pixels via short packed-BGR bitstreams. Attackers can craft a Huffyuv BGR24/BGRA video whose entropy data ends early, causing decode_slice() to add uninitialized s->temp[0] bytes into output frames, exposing heap contents.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
FFmpeg FFmpeg 2.3
FFmpeg FFmpeg 2.3

References & Advisories (5)

Bug Bounty Relevance

39 / 100
✓ No authentication
✓ Low complexity

CVSS Score

6.8 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/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

0.12%
Raw Score 0.001240
Percentile 2.2%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00124
2026-11-12
0.00124
2026-11-10
0.00124
2026-11-09
0.00124
2026-11-08
0.00124
2026-11-07
0.00124
2026-11-06
0.00124
2026-11-05
0.00124
2026-11-04
0.00124
2026-11-03
0.00124
2026-11-02
0.00124
2026-11-01
0.00124

Intelligence Sources

mitre ref →
nvd ref →

External Links