How to downgrade firmware FortiSIEM Supervisor

Forum|Forum|4 months ago
January 14, 2026
1 reply
247 views

Hello Everyone

I have upgraded the FortiSIEM Supervisor firmware from version 7.4.2 to 7.5.0 and encountered many issues/bugs. Therefore, I would like to downgrade the FortiSIEM Supervisor node back to version 7.4.2.

Could you please assist or advise me on the proper procedure to downgrade the FortiSIEM Supervisor firmware

Thank you.

Fortisiem

AEK

SuperUser

Hi

The fastest is to restore from VM backup or revert from snapshot.

Any upgrade/update should be preceded by backup.

AEK

WithoonAuthor

New Member

Dear AEK,

Thank you for your reply.
My FortiSIEM is FortiSIEM 3600G, and it does not have a snapshot feature.

I found the related documentation below:
https://docs.fortinet.com/document/fortisiem/7.5.0/upgrade-guide/505373/upgrading-to-fortisiem-7-5-x
May I follow the steps under the "Restoring from Backup" section in this document?

Best regards,

AEK

SuperUser

Dear Withoon

I've never had to restore FSM before, but the procedure you shared is official and should work as expected. If I was in the same situation I'd execute it as described.

AEK

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