: iLO 4 versions earlier than v2.54 are vulnerable to critical security risks like CVE-2017-12542 , which allows for authentication bypass and remote code execution.
: Frequent flashing or using unstable versions can lead to "degraded" health status for the embedded Flash/SD-card, which is a common hardware failure in older Gen8 servers. How to Downgrade iLO 4 Firmware Safely
While the standard IT rule is to "always keep firmware updated," many HPE ProLiant Gen8 Go to product viewer dialog for this item. downgrade ilo 4 firmware better
If you have decided that the benefits of noise reduction outweigh the security risks, follow these steps to perform the downgrade. Step 1: Check for Restrictions
: If the "Downgrade Policy" is set to "Permanently disallow downgrades" in the iLO settings, you cannot revert to an older version through standard interfaces. : iLO 4 versions earlier than v2
: Certain firmware versions may resolve rare issues like Linux kernel panics or VMware memory corruption, but if a newer update introduces a fresh bug in your specific environment, reverting to a known stable version like v2.70 might be necessary. The Risks: Security vs. Silence
and Gen9 server owners find themselves searching for ways to to achieve better results. This unconventional move is often driven by a specific need for improved fan control, noise reduction, or compatibility with unofficial hardware. If you have decided that the benefits of
Log into your iLO 4 web interface and navigate to . Ensure that the Downgrade Policy is set to "Allow downgrades". Step 2: Obtain the Firmware
The primary reason users seek older firmware versions is the effect. HPE's thermal algorithms in newer iLO 4 versions (specifically post-2.50) can be overly aggressive, especially if non-genuine HPE parts—like retail SSDs or GPUs—are installed.