CVE-2021-34573 Incorrect calculation in Enbra EWM does not report backflows or no flow events

Medium 6.2 Published Updated

Incorrect logic in Enbra EWM fails to report backflow or no-flow events, leading to inaccurate metering data for utility operators.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-34573?

CVE-2021-34573 is a medium-severity vulnerability in Enbra AT-WMBUS-16-2, published on 16 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-682

Which versions are affected by CVE-2021-34573?

It affects 1 product.

Products include Enbra Ewm.

How do I fix CVE-2021-34573?

No fix has been published for CVE-2021-34573 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-34573 being exploited?

There is no known exploitation of CVE-2021-34573 in the wild and no public exploit code.

Sources

Also known as GHSA-p35r-5hv5-759h.

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