Last Modified: Aug 19, 2026
Affected Product(s):
BIG-IP APM
Known Affected Versions:
12.0.0, 12.0.0 hf1, 12.0.0 hf2, 12.0.0 hf3, 12.0.0 hf4, 12.1.0, 12.1.0 hf1, 12.1.0 hf2, 12.1.1, 12.1.1 hf1, 12.1.1 hf2
Fixed In:
13.0.0, 12.1.2
Opened: May 06, 2016 Severity: 3-Major
encryption_key in access config is NULL sometime when applying 404 whitelist action and will result in TMM crash.
Traffic disrupted while tmm restarts.
All the following must be true: - Access policy action resulted in a "not found". - The session corresponding to above action must be expired. - FIPS platform.
None.
Data required to serve a "not found" action is retrieved and made available early so that such responses can be served correctly.