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.CreditsLibor POLČÁK reported to CERT@VDEReferenceshttps://www.fit.vutbr.cz/~polcak/CVE-2021-34572.en