A vulnerability has been identified in SCALANCE SC622-2C (6GK5622-2GS00-2AC2) (All versions < V2.3), SCALANCE SC622-2C (6GK5622-2GS00-2AC2) (All versions >= V2.3 < V3.0), SCALANCE SC626-2C (6GK5626-2GS00-2AC2) (All versions < V2.3), SCALANCE SC626-2C (6GK5626-2GS00-2AC2) (All versions >= V2.3 < V3.0), SCALANCE SC632-2C (6GK5632-2GS00-2AC2) (All versions < V2.3), SCALANCE SC632-2C (6GK5632-2GS00-2AC2) (All versions >= V2.3 < V3.0), SCALANCE SC636-2C (6GK5636-2GS00-2AC2) (All versions < V2.3), SCALANCE SC636-2C (6GK5636-2GS00-2AC2) (All versions >= V2.3 < V3.0), SCALANCE SC642-2C (6GK5642-2GS00-2AC2) (All versions < V2.3), SCALANCE SC642-2C (6GK5642-2GS00-2AC2) (All versions >= V2.3 < V3.0), SCALANCE SC646-2C (6GK5646-2GS00-2AC2) (All versions < V2.3), SCALANCE SC646-2C (6GK5646-2GS00-2AC2) (All versions >= V2.3 < V3.0), SCALANCE WAB762-1 (6GK5762-1AJ00-6AA0) (All versions), SCALANCE WAM763-1 (6GK5763-1AL00-7DA0) (All versions), SCALANCE WAM763-1 (ME) (6GK5763-1AL00-7DC0) (All versions), SCALANCE WAM763-1 (US) (6GK5763-1AL00-7DB0) (All versions), SCALANCE WAM766-1 (EU) (6GK5766-1GE00-7DA0) (All versions), SCALANCE WAM766-1 (ME) (6GK5766-1GE00-7DC0) (All versions), SCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0) (All versions), SCALANCE WAM766-1 EEC (EU) (6GK5766-1GE00-7TA0) (All versions), SCALANCE WAM766-1 EEC (ME) (6GK5766-1GE00-7TC0) (All versions), SCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0) (All versions), SCALANCE WUB762-1 (6GK5762-1AJ00-1AA0) (All versions), SCALANCE WUB762-1 (6GK5762-1AJ00-2AA0) (All versions), SCALANCE WUM763-1 (6GK5763-1AL00-3AA0) (All versions), SCALANCE WUM763-1 (6GK5763-1AL00-3DA0) (All versions), SCALANCE WUM763-1 (US) (6GK5763-1AL00-3AB0) (All versions), SCALANCE WUM763-1 (US) (6GK5763-1AL00-3DB0) (All versions), SCALANCE WUM766-1 (EU) (6GK5766-1GE00-3DA0) (All versions), SCALANCE WUM766-1 (ME) (6GK5766-1GE00-3DC0) (All versions), SCALANCE WUM766-1 (US) (6GK5766-1GE00-3DB0) (All versions). Affected devices do not properly process CLI commands after a user forcefully quitted the SSH connection. This could allow an authenticated attacker to make the CLI via SSH or serial interface irresponsive.
https://www.cisa.gov/news-events/ics-advisories/icsa-24-165-12
https://cert-portal.siemens.com/productcert/html/ssa-690517.html
https://cert-portal.siemens.com/productcert/pdf/ssa-413565.pdf
https://cert-portal.siemens.com/productcert/html/ssa-413565.html