CVE-2013-5741
Triangle Research International (aka Tri) Nano-10 PLC devices with firmware r81 and earlier do not properly handle large length values in MODBUS data, which allows remote attackers to cause a denial of service (transition to the interrupt state) via a crafted packet to TCP port 502.
Date published : 2013-10-28
http://blogs.ixiacom.com/ixia-blog/hack-scada-zero-day-vulnerability-discovery-on-the-nano-10-plc/