Last Modified: Feb 03, 2026
Affected Product(s):
BIG-IP LTM
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, 17.5.0, 17.5.1, 17.5.1.2, 17.5.1.3, 17.5.1.4, 21.0.0, 21.0.0.1
Opened: Jan 22, 2026 Severity: 3-Major
FastL4 late binding does not proxy MSS when establishing server-side connection.
Sub-optimal connection performance.
FastL4 profile with late-binding option enabled.
MSS-overwrite option can be used to manually adjust server-side MSS.
None