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.
https://www.fit.vutbr.cz/~polcak/CVE-2021-34571.en
Source: Mitre, NVD
Published: 2021-09-16
Updated: 2026-06-17
Base Score: 2.9
Vector: CVSS2#AV:A/AC:M/Au:N/C:P/I:N/A:N
Severity: Low
Base Score: 6.5
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity: Medium
EPSS: 0.00044