CVE-2023-51438 Auth bypass in SIMATIC IPC1047E

Q: Is CVE-2023-51438 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-51438 exists.

Q: How do I fix CVE-2023-51438?

No fix has been published for CVE-2023-51438 yet. Limit exposure of the affected software until one is available.

Critical 10.0 Published 9 Jan 2024 Updated 22 May 2025

Unauthorized access is possible in Siemens SIMATIC IPC devices when the Redfish server is enabled for remote management.

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-2023-51438?

CVE-2023-51438 is a critical authentication bypass vulnerability in Siemens SIMATIC IPC1047E, published on 9 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability has been identified in SIMATIC IPC1047E (All versions with maxView Storage Manager < V4.14.00.26068 on Windows), SIMATIC IPC647E (All versions with maxView Storage Manager < V4.14.00.26068 on Windows), SIMATIC IPC847E (All versions with maxView Storage Manager < V4.14.00.26068 on Windows). In default installations of maxView Storage Manager where Redfish® server is configured for remote system management, a vulnerability has been identified that can provide unauthorized access.

Weakness: CWE-20

Which versions are affected by CVE-2023-51438?

It affects 1 product.

Products include Microchip Maxview Storage Manager.

How do I fix CVE-2023-51438?

No fix has been published for CVE-2023-51438 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2023-51438 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-51438 exists.

Sources

Also known as GHSA-r573-6cpv-hcwq.