CVE-2023-43688

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

High · published June 9, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
11.5
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). There is a Heap buffer overflow in various buffer encryption utilities.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00217 · 11.5th 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