CVE-2023-35987: Piigab M-Bus 900s Firmware

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

PiiGAB M-Bus contains hard-coded credentials which it uses for authentication.

Affected products

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

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