CVE-2023-43688

High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Published 2026-06-09. Last modified 2026-07-23.