Although I was triggered by a daily update I received from EMC in this knowledge base article: https://support.emc.com/kb/194669, it was Cisco who finally published an update for various firmwares that did not have a fix yet for the shellshock aka bashbug.
You can find all Release Notes on the Cisco site at http://www.cisco.com/c/en/us/support/storage-networking/mds-9000-nx-os-san-os-software/products-release-notes-list.html.
The EMC version of the Release Notes can be found here:

• version 5.0(8a): Connectrix MDS 9000 NX-OS 5.0(8a) Release Notes
• version 5.2(8e): Connectrix MDS 9000 NX-OS 5.2(8e) Release Notes
• version 6.2(9a): Connectrix MDS 9000 NX-OS 6.2(9a) Release Notes

If you haven’t upgraded yet, I’d plan to do so in the very near future!