Last Modified: Apr 02, 2026
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
17.5.1.4, 17.5.1.3, 17.1.3, 17.1.2.2, 17.1.0.1
Fixed In:
17.5.1.5
Opened: Feb 24, 2026 Severity: 1-Blocking
The 'tmsh run sys integrity status-check' or 'tpm-status' commands incorrectly report system integrity status as 'Unavailable' although the system software has not been modified. Detailed output of the "tpm-status -v 3" command includes the following messages: Cert policy: 1.3.6.1.4.1.3375.0.1.1.1 Required policy:1.3.6.1.4.1.3375.0.1.1.1 Key certificate OID: 1.3.6.1.4.1.3375.0.1.1.1 Popping a key cert into keys Key cert verification: 0 Invalid key cert detected, removing from verification chain Verifying SIRR database contents... System Integrity Status: Unavailable In addition: Some Engineering Hotfixes containing a fix for ID2141205 do not successfully resolve the symptoms of ID2141205.
You are unable to determine the integrity of the system boot components validated by the Trusted Platform Module (TPM). The system integrity status shows Unavailable, when the actual status may be either Valid or Invalid.
This may occur on affected versions on or after April 4, 2026, when running on the following F5 hardware platforms which include TPM (Trusted Platform Module) hardware: -- iSeries appliances -- VIPRION B44xx blades (B4450, B4460) This may occur when running the follow BIG-IP versions which include the fix for ID 2141205 (https://cdn.f5.com/product/bugtracker/ID2141205.html): -- Pre-release versions of BIG-IP; specifically, sustaining branches for BIG-IP v21.0.x, v17.5.x and v17.1.x. -- Engineering Hotfixes which include the fix for ID 2141205. To date, such Engineering Hotfixes have been provided for the following BIG-IP versions: -- v17.5.1.3, v17.5.1.4 -- v17.1.0.1, v17.1.2.2, v17.1.3
None.
Trusted Platform Module (TPM) status shows the correct system integrity status for BIG-IP versions which include the fix for ID2141205. ID2141205 is also resolved in BIG-IP releases and Engineering Hotfixes.