You need to manually update the firmware and BIOS of your Symantec EDR hardware appliance.
Symantec S550/S450 appliance.
This update is required as the result of a software update to patch a security issue detected in the Symantec EDR hardware appliance.
1. Perform the upgrade to Symantec EDR 4.6.5-32.
2. Log into the EDR serial console terminal (not ssh).
3. At the admin prompt type: get_firmware_version
Note the version string.
4. At the admin prompt type: firmware_update step1
If the version noted in step 3 is 0ACKP018, the host will automatically shut down. Do the following:
a. Wait for the serial console terminal output to read "Power off".
b. At the physical host, shut off the AC power and wait for the LEDs to go dark.
c. Turn the AC power back on.
d. Turn the host back on.
e. At the admin prompt type: firmware_update step2
It may take a while, but the host will eventually reboot.
g. When the host reboots, login as admin, and type: get_firmware_version
The version should be 0ACNU020.
If the version in step 3 is 0ACNU019, do the following:
a. At the admin prompt type: firmware_update step1
b. At the admin prompt type: firmware_update step2
The host will reboot. This can take a while.
c. When the host reboots, login as admin, and type: get_firmware_version
The version should be 0ACNU020.