CVE-2023-3634: Festo MSE6-c2m-5000-FB36-D-M-Rg-Bar-m12l4-Agd

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

In products of the MSE6 product-family by Festo a remote authenticated, low privileged attacker could use functions of undocumented test mode which could lead to a complete loss of confidentiality, integrity and availability.

Affected products

• Festo MSE6-c2m-5000-FB36-D-M-Rg-Bar-m12l4-Agd: any version
• Festo MSE6-c2m-5000-FB36-D-M-Rg-Bar-m12l5-Agd: any version
• Festo MSE6-c2m-5000-FB43-D-M-Rg-Bar-m12l4-MQ1-Agd: any version
• Festo MSE6-c2m-5000-FB43-D-M-Rg-Bar-m12l5-MQ1-Agd: any version
• Festo MSE6-c2m-5000-FB44-D-M-Rg-Bar-AMI-Agd: any version
• Festo MSE6-c2m-5000-FB44-D-Rg-Bar-AMI-Agd: any version
• Festo MSE6-d2m-5000-Cbus-S-Rg-Bar-Vcb-Agd: any version
• Festo MSE6-e2m-5000-FB13-Agd: any version
• Festo MSE6-e2m-5000-FB36-Agd: any version
• Festo MSE6-e2m-5000-FB37-Agd: any version
• Festo MSE6-e2m-5000-FB43-Agd: any version
• Festo MSE6-e2m-5000-FB44-Agd: any version

Published 2026-04-16. Last modified 2026-06-17.