Last Modified: Jul 18, 2026
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
12.1.0, 12.1.0 hf1, 12.1.0 hf2, 12.1.1, 12.1.1 hf1, 12.1.1 hf2, 12.1.2, 12.1.2 hf1, 12.1.2 hf2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6
Fixed In:
13.0.0
Opened: Sep 29, 2016 Severity: 2-Critical Related Article:
K49220140
TMM crashes when an HTTP2 connection is being terminating on client and server sides concurrently.
Traffic disrupted while tmm restarts.
-- HTTP2 profile is configured and assigned to a virtual server. -- A client SSL profile is also used on the same virtual server. -- Client interrupting a connection and server terminating a connection at the same time.
None.
A fix stops HTTP2 from further processing when a connection is terminating preventing TMM crash for this reason.