CVE-2014-8479
The FTP server on Siemens SCALANCE X-300 switches with firmware before 4.0 and SCALANCE X 408 switches with firmware before 4.0 allows remote authenticated users to cause a denial of service (reboot) via crafted FTP packets.
Date published : 2015-01-21
http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-321046.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-321046.pdf