Last Modified: May 05, 2026
Affected Product(s):
BIG-IP LTM
Fixed In:
17.5.1.6
Opened: Jan 13, 2026 Severity: 3-Major
When the client sends requests using the TLS 1.3 CCM or CCM_8 cipher suites, the handshake fails with a ‘no shared cipher suite’ error.
The handshake fails with a ‘no shared cipher suite’ error.
Configure the client to send requests using the TLS 1.3 CCM and CCM_8 cipher suites.
There is no workaround. If the client sends a request using the TLS 1.3 CCM or CCM_8 cipher suites, the handshake will fail.
Support for the TLS 1.3 CCM and CCM_8 cipher suites has been added, allowing the handshake to succeed when the client sends these cipher suites to BIG-IP.