CVE-2021-34572: Enbra Ewm

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

Enbra EWM 1.7.29 does not check for or detect replay attacks sent by wireless M-Bus Security mode 5 devices. Instead timestamps of the sensor are replaced by the time of the readout even if the data is a replay of earlier data.

Affected products

• Enbra Ewm: version 1.7.29 only

Published 2021-09-16. Last modified 2026-06-17.