BIG-IP
CVE-2023-43124: BIG-IP APM Clients TunnelCrack vulnerability
BIG-IP APM clients may send IP traffic outside of the VPN tunnel.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityMEDIUMCVSS 3.1 5.3
EPSS0.17%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
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 Edge Client (Windows, MacOS, Linux) 7.2 | * or later |
| F5 Access (Android, iOS) 3.0 | * or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
BIG-IP APM clients may send IP traffic outside of the VPN tunnel. 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.