CVE-2022-33320 Deserialization in GENESIS64

High 7.8 Published 20 Jul 2022 Updated 9 Jan 2026

Unauthenticated attackers can execute arbitrary code by tricking users into opening malicious project files in Mitsubishi Electric SCADA software.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2022-33320?

CVE-2022-33320 is a high-severity unsafe deserialization vulnerability in Mitsubishi Electric GENESIS64, published on 20 Jul 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Deserialization of Untrusted Data vulnerability in Mitsubishi Electric GENESIS64 versions 10.97 to 10.97.1, Mitsubishi Electric Iconics Digital Solutions GENESIS64 versions 10.97 to 10.97.1, Mitsubishi Electric ICONICS Suite versions 10.97 to 10.97.1, Mitsubishi Electric Iconics Digital Solutions ICONICS Suite versions 10.97 to 10.97.1, and Mitsubishi Electric MC Works64 versions 4.04E and prior allows an unauthenticated attacker to execute an arbitrary malicious code by leading a user to load a project configuration file including malicious XML codes.

Weakness: CWE-502

Which versions are affected by CVE-2022-33320?

It affects 2 products.

Products include Iconics Genesis64, Mitsubishielectric Mc Works64.

How do I fix CVE-2022-33320?

No fix has been published for CVE-2022-33320 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2022-33320 being exploited?

There is no known exploitation of CVE-2022-33320 in the wild and no public exploit code.

Sources

Also known as GHSA-429h-8m2j-j6cx.