CVE-2023-34433: Piigab M-Bus 900s Firmware

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

PiiGAB M-Bus stores passwords using a weak hash algorithm.

Affected products

• Piigab M-Bus 900s Firmware: affected versions not specified

Published 2023-07-07. Last modified 2026-06-17.