Last Modified: Jan 20, 2026
Affected Product(s):
BIG-IP Install/Upgrade, LTM
Known Affected Versions:
17.1.3
Opened: Jan 14, 2026 Severity: 2-Critical
Able to install and upgrade to BIG-IP version 21.x using a F5-BIG-VE-LAB-V18 issued license without encountering errors during the process.
Mistakenly believe to run a supported environment under V18 licenses with BIG-IP version 21.x, leading to potential misconfigurations, lack of vendor support, and system reliability risks.
The issue specifically occurs when using the F5-BIG-VE-LAB-V18 license type. Users with V18 licenses attempt to install or upgrade to BIG-IP 21.x versions.
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