CVE-2023-43699: Sick APU0200 Firmware

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

Improper Restriction of Excessive Authentication Attempts in RDT400 in SICK APU allows an unprivileged remote attacker to guess the password via trial-and-error as the login attempts are not limited.

Affected products

• Sick APU0200 Firmware: before 4.0.0.6 (fixed in 4.0.0.6)

Published 2023-10-09. Last modified 2026-06-17.