CVE-2023-1256: Critical severity aveva plant scada vulnerability

Published Mar 16, 2023

Updated

The listed versions of AVEVA Plant SCADA and AVEVA Telemetry Server are vulnerable to an improper authorization exploit which could allow an unauthenticated user to remotely read data, cause denial of service, and tamper with alarm states.

Affected Software

8 affected components

AVEVA Plant SCADA 2023, AVEVA Plant SCADA 2020R2 Update 10 and all prior versions

AVEVA Telemetry Server 2020 R2 SP1 and all prior versions

AVEVA AVEVA Plant SCADA=2020r2

AVEVA AVEVA Plant SCADA=2020r2-update_10

AVEVA AVEVA Plant SCADA=2023

AVEVA AVEVA Plant SCADA=2023-update_10

AVEVA Telemetry Server=2020r2

AVEVA Telemetry Server=2020r2-sp1

Event History

Mar 16, 2023

CVE Published

via MITRE·06:33 PM

Data Sourced

via MITRE·06:33 PM

DescriptionSeverityWeakness

Parent advisories

This vulnerability appears in the following advisories.

ICSA-23-073-04

Frequently Asked Questions

What is CVE-2023-1256?

CVE-2023-1256 is a vulnerability in AVEVA Plant SCADA and AVEVA Telemetry Server that could allow an unauthenticated user to remotely read data, cause denial of service, and tamper with alarm states.

How severe is CVE-2023-1256?

CVE-2023-1256 has a severity rating of 9.8 out of 10, which is considered critical.

Which versions of AVEVA Plant SCADA are affected by CVE-2023-1256?

CVE-2023-1256 affects AVEVA Plant SCADA versions 2020r2, 2020r2-update_10, 2023, and 2023-update_10.

Which version of AVEVA Telemetry Server is affected by CVE-2023-1256?

CVE-2023-1256 affects AVEVA Telemetry Server versions 2020r2 and 2020r2-sp1.

How can I fix CVE-2023-1256?

To fix CVE-2023-1256, it is recommended to apply the latest security updates and patches provided by AVEVA.