Last Modified: Jul 28, 2026
Affected Product(s):
BIG-IP TMOS
Fixed In:
21.1.0.1, 21.0.0.3, 17.5.1.8, 17.1.3.4
Opened: Apr 16, 2026 Severity: 2-Critical
In some instances, TMSH may experience a segmentation fault if a thread is not properly cancelled
TMSH would crash without any immediate indication as to why
The crash was intermittent, but in certain situations, when a thread was improperly cancelled, TMSH could crash
None
Fixed an intermittent crash that could happen during process shutdown