VPN Vulnerability Scanner

Common VPN security issues include: unpatched vulnerabilities in VPN appliances (Pulse Secure, Fortinet, Cisco, Palo Alto have all had critical CVEs exploited by threat actors), credential stuffing against VPN login portals, DNS leaks that expose browsing activity despite the VPN being active, split tunneling misconfigurations that leave corporate traffic unprotected, and MFA not enforced on VPN access — a primary initial access vector for ransomware groups.

VPN gateways are internet-facing, handle authentication, and provide direct access to internal network segments — making them high-value initial access targets. When a critical VPN CVE is disclosed, threat actors race to exploit unpatched appliances before organizations can patch. SOCRadar's analysis shows that VPN exploitation accounts for a significant percentage of ransomware initial access, particularly in attacks against healthcare, manufacturing, and government organizations.

Enter your VPN gateway domain or IP into the VPN Security Checker. The tool will check your VPN product version against known CVE databases, verify whether critical patches have been applied, and flag any indicators that your gateway may have been probed or compromised. For Pulse Secure, Fortinet FortiGate, Cisco AnyConnect, and other major VPN products, version-specific vulnerability data is included.

Yes. The scan is passive and non-intrusive — it does not send exploit payloads, does not attempt authentication, and does not cause any disruption to your VPN service. It gathers only publicly observable information: banner responses, certificate data, and version indicators. This is the same information an attacker performing reconnaissance would collect, making it a valuable defensive check.