CVE-2023-43686

An issue was discovered in Malwarebytes 4.x and 5.x (and Nebula 2020-10-21 and later)

Medium · published June 9, 2026

CVSS v3.1
6.2
EPSS
0%
Percentile
1.6
In the wild
Unconfirmed
What it is

An issue was discovered in Malwarebytes 4.x and 5.x (and Nebula 2020-10-21 and later). A large number of Firefox preference files can cause the parser to ignore other browser configuration files, leading to a denial of service.

The record
Technical detail
CVSS v3.1
6.2 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00118 · 1.6th percentile
Published
2026-06-09T00:00Z
EPSS history
Timeline
  • 09 JUN 00:00Z
    An issue was discovered in Malwarebytes 4.x and 5.x (and Nebula 2020-10-21 and later)
    cvelistv5