CVE-2021-34571

MediumCVSS 6.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-798

Affected software

No affected versions have been published.

Timeline

Published
Sep 16, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-345726.5Enbra 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 sensoCVE-2021-345735.5In Enbra EWM in Version 1.7.29 together with several tested wireless M-Bus Sensors the events backflow and "no flow" are not reconized or miCVE-2021-345744.3In MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2 an authenticated attaCVE-2021-345757.5In MB connect line mymbCONNECT24, mbCONNECT24 in versions <= 2.8.0 an unauthenticated user can enumerate valid users by checking what kind oCVE-2021-345764.3In Kaden PICOFLUX Air in all known versions an information exposure through observable discrepancy exists. This may give sensitive informatiCVE-2021-345776.5In the Kaden PICOFLUX AiR water meter an adversary can read the values through wireless M-Bus mode 5 with a hardcoded shared key while beingCVE-2021-345788.1This vulnerability allows an attacker who has access to the WBM to read and write settings-parameters of the device by sending specifically CVE-2021-345797.5In Phoenix Contact: FL MGUARD DM version 1.12.0 and 1.13.0 access to the Apache web server being installed as part of the FL MGUARD DM on MiCVE-2021-34584.6The Motorola MM1000 device configuration portal can be accessed without authentication, which could allow adapter settings to be modified.CVE-2021-345807.5In mymbCONNECT24, mbCONNECT24 <= 2.9.0 an unauthenticated user can enumerate valid backend users by checking what kind of response the serveCVE-2021-345817.5Missing Release of Resource after Effective Lifetime vulnerability in OpenSSL implementation of WAGO 750-831/xxx-xxx, 750-880/xxx-xxx, 750-8CVE-2021-345824.8In Phoenix Contact FL MGUARD 1102 and 1105 in Versions 1.4.0, 1.4.1 and 1.5.0 a user with high privileges can inject HTML code (XSS) through
CVE-2021-34571: Medium severity, CVSS 6.5 | Vulnix