Nagios Support Forum

We have a VM with the CentOS 6.3 version, running NagiosXi 5.3.0 and Core 4.1.1
We want to update both , to avoid CVE-2016-9566.
When we update Nagiosxi to 5.3.4, Core is still at 4.1.1. If i try to update Core manually to 4.2.4, it fails to start with

ndomod: I've been compiled with support for revision 402 of the internal Nagios object structures, but the Nagios daemon is currently using revision 403. I'm going to unload so I don't cause any problems...
Dec 20 12:48:36 pevrtmon1 nagios[3387]: Error: Function nebmodule_init() in module '/usr/local/nagios/bin/ndomod.o' returned an error. Module will be unloaded.
Dec 20 12:48:36 pevrtmon1 nagios[3387]: Event broker module '/usr/local/nagios/bin/ndomod.o' deinitialized successfully.
Dec 20 12:48:36 pevrtmon1 nagios[3387]: Error: Failed to load module '/usr/local/nagios/bin/ndomod.o'.

The version of ndomod inside the last nagiosxi version is ndoutils-2.0.0 (but 2.1.2 is the latest)
Could somebody help me to understand the right sequence to follow to update both (If possible)
Thanks
Ileana

Our XI 5.4.0 release will include the updated and fixed Core version, and is planned for release by January. There are currently some issues with both Core and XI which make updating Core manually something I cannot recommend in a production environment.

That said, we can leave this thread open in case anyone from the community has gotten this working.