Last Modified: Jul 18, 2026
Affected Product(s):
BIG-IP LTM, PEM
Known Affected Versions:
11.5.1, 11.5.1 hf1, 11.5.1 hf2, 11.5.1 hf3, 11.5.1 hf4, 11.5.1 hf5, 11.5.1 hf6, 11.5.1 hf7, 11.5.1 hf8, 11.5.1 hf9, 11.5.1 hf10, 11.5.1 hf11, 11.5.2, 11.5.2 hf1, 11.5.3, 11.5.3 hf1, 11.5.3 hf2, 11.5.4, 11.5.4 hf1, 11.5.4 hf2, 11.5.4 hf3, 11.5.4 hf4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.0 hf1, 11.6.0 hf2, 11.6.0 hf3, 11.6.0 hf4, 11.6.0 hf5, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 11.6.2, 11.6.2 hf1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3
Opened: Sep 08, 2014 Severity: 3-Major Related Article:
K17039
If LTM virtual server has the RADIUS profile 'radiusLB-subscriber-awre' configured, the PEM subscriber session will be created, even if the BIG-IP system is not licensed for PEM, which can cause 100% TMM usage due to the overhead of processing RADIUS messages.
100% TMM usage due to PEM subscriber session being created, even when the BIG-IP system is not licensed for the PEM module.
The RADIUS profile 'radiusLB-subscriber-awre' is configured on the LTM virtual server for non-PEM configurations.
The workaround is to avoid the misconfiguration by not associating the RADIUS profile 'radiusLB-subscriber-awre' to LTM virtual servers for non-PEM configurations, such as when there is no PEM license for the BIG-IP system.
None