CVE-2026-73473

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-11-06 Modified: 2026-11-10 First seen: 2026-11-06 Status: active

Attack Surface

Low Complexity No Auth

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Required
S: Unchanged
C: None
I: None
A: High

Description

A flaw was found in GStreamer gst-plugins-good (avidemux). In the subindex parser, missing validation of the entry count can cause excessive memory allocation and denial of service. Because avidemux is auto-plugged by playbin, decodebin, and gst-discoverer, opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).

Affected Software (2)

VendorProductVersion
GStreamer gst-plugins-good 0 < 1.28.6
GStreamer gst-plugins-good 0 < 1.28.6

Bug Bounty Relevance

36 / 100
✓ No authentication
✓ Low complexity

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.12%
Raw Score 0.001240
Percentile 2.1%
Date 2026-11-12

EPSS Trend

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

Intelligence Sources

mitre ref →
nvd ref →