CVE-2022-2971 MZ Automation libIEC61850 Access of Resource Using Incompatible Type ('Type Confusion')

High 8.6 Published 23 Sep 2022 Updated 16 Apr 2025

An attacker can crash the server by sending a malicious payload that triggers a type confusion error in the libIEC61850 library.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-2971?

CVE-2022-2971 is a high-severity memory corruption vulnerability in MZ Automation libIEC61850, published on 23 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

MZ Automation's libIEC61850 (versions 1.4 and prior; version 1.5 prior to commit a3b04b7bc4872a5a39e5de3fdc5fbde52c09e10e) accesses a resource using an incompatible type, which could allow an attacker to crash the server with a malicious payload.

Weakness: CWE-843

Which versions are affected by CVE-2022-2971?

It affects 1 product.

Products include Mz-Automation Libiec61850.

How do I fix CVE-2022-2971?

No fix has been published for CVE-2022-2971 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-2971 being exploited?

There is no known exploitation of CVE-2022-2971 in the wild and no public exploit code.

Sources

Also known as GHSA-gxrc-qj6f-5vph.