CVE-2021-34573

Incorrect calculation in Enbra EWM does not report backflows or no flow events

MEDIUM

5.5

CVSS Score

Published: September 16, 2021 at 12:20 PM UTC

Updated: June 17, 2026 at 03:56 AM UTC

3 products affected across 1 vendorEwmER-AM DN 15AT-WMBUS-16-2

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

In 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 misinterpreted. This may lead to wrong values and missing events.

Affected

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

Ewm · Enbra

95%

1.7.29 3.11.2019

AT-WMBUS-16-2 · Enbra

60%

All versions

ER-AM DN 15 · Enbra

60%

ER-AM DN 15/SV all ER-AM DN 15/TV all

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

Source: [email protected]

https://www.fit.vutbr.cz/~polcak/CVE-2021-34573.en

CVSS

5.5MEDIUM[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: HIGH
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-682

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