On BIG-IP 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, 12.1.0-12.1.4, 11.6.1-11.6.3.4, and 11.5.1-11.5.8, SNMP exposes sensitive configuration objects over insecure transmission channels. This issue is exposed when a passphrase is inserted into various profile types and accessed using SNMPv2.
https://support.f5.com/csp/article/K40443301?utm_source=f5support&%3Butm_medium=RSS