CVE-2024-2421: Honeywell LENELS2 Netbox

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

LenelS2 NetBox access control and event monitoring system was discovered to contain an unauthenticated RCE in versions prior to and including 5.6.1, which allows an attacker to execute malicious commands with elevated permissions.

Affected products

• Honeywell LENELS2 Netbox: before 5.6.2 (fixed in 5.6.2)

Published 2024-05-30. Last modified 2026-06-17.