Tuesday, February 13, 2018

Cisco - ASDM Java Bug Windows 10

Cisco ASDM Java Bug

There apparently exists a bug in the Cisco ASDM with the ASA-X series when the Firepower services are enabled. The gist of the bug is that with Windows 10 and possibly other Windows OSes (Server 2008 R2 for me) you must run JRE 7.51 or you cannot get the ASDM to load. Oddly enough I was able to get the ASDM to run on the standby ASA but not the primary.

Workaround:

In order to get around the ASDM and Windows 10 compatibility bug, you'll have to install JRE 7 update 51. This can be download from the archives if you have a valid Oracle support account.
I can confirm this worked for me on Windows Server 2008 R2 as well. I was using a Cisco ASA 5516-X failover cluster.

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