BIG-IP
CVE-2023-43746: BIG-IP Appliance mode external monitor vulnerability
When running in Appliance mode, an authenticated user assigned the Administrator role may be able to bypass Appliance mode restrictions, utilizing BIG-IP external monitor on a BIG-IP system.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| BIG-IP 17.1 | Not affected |
| BIG-IP 16.1 | 16.1.4 or later |
| BIG-IP 15.1 | 15.1.9 or later |
| BIG-IP 14.1 | * or later |
| BIG-IP 13.1 | * or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
When running in Appliance mode, an authenticated user assigned the Administrator role may be able to bypass Appliance mode restrictions, utilizing BIG-IP external monitor on a BIG-IP system. A successful exploit can allow the attacker to cross a security boundary. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 12 Oct 2026.