Last Modified: Jan 07, 2026
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.5.1, 11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.6.0, 11.6.0 HF1, 11.6.0 HF2
Fixed In:
12.0.0, 11.6.0 HF3, 11.5.1 HF6
Opened: Oct 17, 2014 Severity: 3-Major Related Article:
K16935
Virtual servers configured with a Client SSL profile do not support the Transport Layer Security (TLS) Fallback Signaling Cipher Suite Value (SCSV) in Secure Sockets Layer (SSL) ClientHello transactions.
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When the SSL ClientHello contains the SCSV marker, if the client protocol offered is not the latest that the virtual server supports, a fatal alert will be sent. For more information, see SOL16935: Support for the TLS Fallback SCSV https://support.f5.com/kb/en-us/solutions/public/16000/900/sol16935.html