Last Modified: Mar 28, 2026
Affected Product(s):
BIG-IP Install/Upgrade, TMOS
Known Affected Versions:
15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1, 15.1.8.2, 15.1.9, 15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3, 15.1.10.4, 15.1.10.5, 15.1.10.6, 15.1.10.7, 15.1.10.8, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 16.1.5.1, 16.1.5.2, 16.1.6, 16.1.6.1, 17.0.0, 17.0.0.1, 17.0.0.2, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2, 17.1.3, 17.1.3.1, 17.5.0, 17.5.1, 17.5.1.2, 17.5.1.3, 17.5.1.4, 17.5.1.5, 21.0.0, 21.0.0.1
Opened: Feb 27, 2026 Severity: 2-Critical
- After a reboot, upgrade, or otherwise forcing MCPD to load its configuration from the text config files (refer to K13030: Forcing the mcpd process to reload the BIG-IP configuration), MCPD remains inoperative and fails to load the configuration. - The configuration fails to load with the following error: 01020036:3: The requested device (/Common/<device-name>) was not found.
The system remains inoperative and the configuration will not load.
- deprecatedApiAllowed is set to false in /config/api_settings/availability.conf. The default is "true".
Do not set deprecatedApiAllowed to false. If the configuration currently will not load, log into the system as root and do the following: 1. Edit /config/api_settings/availability.conf and set "deprecatedApiAllowed" to "true". This can be done by running: sed -i -e 's,deprecatedApiAllowed":false,deprecatedApiAllowed":true,' /config/api_settings/availability.conf 2. Load the configuration: tmsh load sys config
None