Last Modified: Apr 16, 2026
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
16.1.6.1, 17.5.1.5
Opened: Apr 01, 2026 Severity: 3-Major
TMM crashes with a SIGSEGV and then restarts.
Traffic is disrupted during a TMM restart, and the redundant unit fails over.
- The DNS cache resolver is configured and processing queries. - A DNS cache-resolver object is changed, specifically a setting that alters max-concurrent-queries or max-concurrent-tcp. - Live DNS traffic is in progress when the change is applied.
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