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CVE-2021-34571

Hard-coded Credentials in Enbra Wireless M-Bus devices

CVSS 6.5 MEDIUMEPSS 0.2%CWE-798
Multiple Wireless M-Bus devices by Enbra use Hard-coded Credentials in Security mode 5 without an option to change the encryption key. An adversary can learn all information that is available in Enbra EWM.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
Enbra · AT-WMBUS-16-2Enbra · ER-AM DN 15Enbra · EWM 1.7.29

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References
https://www.fit.vutbr.cz/~polcak/CVE-2021-34571.en