Last Modified: Mar 17, 2026
Affected Product(s):
BIG-IP AFM
Known Affected Versions:
17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2, 17.1.3, 17.1.3.1, 17.5.1, 17.5.1.2, 17.5.1.3, 17.5.1.4, 17.5.1.5, 21.0.0, 21.0.0.1
Opened: Jan 21, 2026 Severity: 3-Major
TMM crash occurs when HSB delivers events to incorrect TMM threads. The crash happens due to accessing uninitialized per-thread resources (spvawl_timer_sweep).
Traffic disrupted while tmm restarts.
TMM passing traffic through HSB; the conditions under which this are encountered are rare and difficult to reproduce.
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