GE Multilink ML800, ML1200, ML1600, and ML2400 switches with firmware 4.2.1 and earlier and Multilink ML810, ML3000, and ML3100 switches with firmware 5.2.0 and earlier allow remote attackers to cause a denial of service (resource consumption or reboot) via crafted packets.
https://www.cisa.gov/news-events/ics-advisories/icsa-15-013-04a
https://ics-cert.us-cert.gov/advisories/ICSA-15-013-04
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2015/icsa-15-013-04a.json
http://www.gedigitalenergy.com/products/support/multilink/MLSB1214.pdf