As the fixed releases have not been pointed out in the bug, to enable the threat detection feature use the following versions:
- 9.16 version train -> supported from 9.16(4)67 and newer versions within this specific train.
- 9.18 version train -> supported from 9.18(4)40 and newer versions within this specific train.
- 9.20 version train -> supported from 9.20(3) and newer versions within this specific train.
- 9.22 version train -> supported from 9.22(1.1) and any newer versions.
Source: Configure Threat Detection for Remote Access VPN Services on Secure Firewall ASA - Cisco
