CVE-2021-34571

Hard-coded Credentials in Enbra Wireless M-Bus devices

MEDIUM
6.5
CVSS Score
Published: September 16, 2021 at 12:20 PM UTC
Updated: June 17, 2026 at 03:56 AM UTC
1 product affected across 1 vendorEwm

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRMThird Party Advisory
https://www.fit.vutbr.cz/~polcak/CVE-2021-34571.en

CVSS

6.5MEDIUMCERTVDE
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-798

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