CVE-2021-28913: Bab-Technologie Eibport Firmware

Critical severity, CVSS 9.8. EPSS: 1.8% chance of exploitation in the next 30 days.

BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allow unauthenticated attackers access to /webif/SecurityModule to validate the so called and hard coded unique 'eibPort String' which acts as the root SSH key passphrase. This is usable and part of an attack chain to gain SSH root access.

Affected products

Published 2021-09-09. Last modified 2026-06-17.