Last Modified: Aug 19, 2026
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
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
Opened: Nov 22, 2016 Severity: 3-Major
When HTTP disallows TLSv1 connections, UCS via iControl/REST fails with the following in the logs: [SEVERE][86][08 Nov 2016 16:47:20 UTC][com.f5.rest.icontrol.IControlRunnable] (iControl execution) AxisFault[; nested exception is: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure]: [WARNING][87][08 Nov 2016 16:47:20 UTC][8100/tm/shared/sys/backup/52d67805-3aab-4260-8770-a690154c698e/worker UcsBackupTaskWorker] Failed to restore from backup: backup_test.ucs
iControl REST clients are unable to connect.
This occurs when TLSv1 is explicitly disallowed in the HTTP profile.
None.
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