CVE-2022-45138 WAGO: Missing Authentication for Critical Function

Critical 9.8 Published 27 Feb 2023 Updated 10 Mar 2025

Unauthenticated attackers can access the configuration backend to read and modify device parameters, leading to full device compromise.

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-2022-45138?

CVE-2022-45138 is a critical missing authorization vulnerability in WAGO Compact Controller CC100 (751-9301), published on 27 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The configuration backend of the web-based management can be used by unauthenticated users, although only authenticated users should be able to use the API. The vulnerability allows an unauthenticated attacker to read and set several device parameters that can lead to full compromise of the device.

Weakness: CWE-306

Which versions are affected by CVE-2022-45138?

It affects 7 products.

Products include Wago 751-9301 Firmware, Wago 752-8303\/8000-002 Firmware, Wago Pfc100 Firmware, Wago Pfc200 Firmware, Wago Touch Panel 600 Advanced Firmware, Wago Touch Panel 600 Marine Firmware and 1 more.

How do I fix CVE-2022-45138?

No fix has been published for CVE-2022-45138 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2022-45138 being exploited?

There is no known exploitation of CVE-2022-45138 in the wild and no public exploit code.

Sources

Also known as GHSA-hq37-597p-8qrg.