Hi there, according to the details listed in the bug, only 5.7(0.15) is affected by this. Also, starting with v5, the architecture was completely changed in ACS by going to Linux. Prior to 5.x, ACS was running on the top of Windows. Thus, it is highly unlikely that those versions are affected.
With that said, it is best to reach out to Cisco TAC and confirm 100% whether other versions (not listed on the bug details page) are affected.
Also, keep in mind that ACS v3.x is EoL/EoS :)
I hope this helps!
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