Cisco recently released an update to their Industrial Ethernet 3000 (IE 3000) Series switches in which two software versions have a hard-coded SNMP address vulnerability.  A workaround and software update is available.  I would like to point out a detail in this advisory that seems pertinent given the industrial application of these devices.  On the notification page is another advisory: "Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment"