CVE-2023-43683

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

An issue was discovered in Malwarebytes 4.6.14.326 and before 5.1.5.116 (and Nebula 2020-10-21 and later). A Stack buffer out-of-bounds access exists because of an integer underflow when handling newline characters.

Published 2025-08-14. Last modified 2026-06-17.