Last Modified: Jul 18, 2026
Affected Product(s):
BIG-IP All
Known Affected Versions:
11.5.4, 11.5.4 hf1, 11.5.4 hf2, 11.5.4 hf3, 11.5.4 hf4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 11.6.2, 11.6.2 hf1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3
Opened: Nov 14, 2014 Severity: 3-Major
You are experiencing SSL handshake failures. There are error messages in /var/log/ltm similar to the following: tmm[16895]: 01260009:7: Connection error:9044: invalid pre-master secret (40)
SSL connection unable to establish; error generated. Note: This occurs only for clients that send SSLv2 or TLSv1 in the CLIENTHELLO.
-- Client SSL profiles configured. -- Client sends a CLIENTHELLO containing a SSLv2 or TLSv1 version in the handshake message.
None.
None
During the SSL Handshake, the BIG-IP system strictly checks the protocol version in the pre-master secret to verify it matches with the protocol version used in the Client Hello.