Unable to update cortex to latest version

Mahendran.M — Mon, 06 Nov 2023 11:16:25 GMT

When i try to update the cortex version 8.1.1.43337 version, I got the attached error. I try to update from 7.9.1 version.

Re: Unable to update cortex to latest version

jmazzeo — Mon, 06 Nov 2023 13:01:13 GMT

Hi @Mahendran.M, thanks for using the Live Community!

On what Windows version and build are you trying to update?

Re: Unable to update cortex to latest version

neelrohit — Mon, 06 Nov 2023 13:32:50 GMT

Hi @Mahendran.M ,

To complement to what @jmazzeo just asked, it seems that you need to have Azure Code Signing patch installed on your endpoint. This is a mandate from Microsoft starting March, 2023 for all security vendors to sign their binaries with this patch and because 8.1.1 is a post March, 2023 release of Cortex XDR agent version, you will not be able to install the agent. Microsoft also mandates that because this patch is cumulative, you patch your endpoint or upgrade your OS patches to the latest available security update to have the ACS patch installed.

There is an another Live community articles solved which responds to the same question in different responses which may be helpful for you: https://live.paloaltonetworks.com/t5/cortex-xdr-discussions/cortex-xdr-8-1-not-installing-on-windows-server-2008-r2-2012/m-p/555065#M5030

Hope this helps!

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Unable to update cortex to latest version

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