strongSwan — Vulnerabilities & Security Advisories 18

strongSwan is an open-source IPsec-based VPN solution primarily used for secure remote access and site-to-site connections. Historically, it has been susceptible to remote code execution, cross-site scripting, and privilege escalation vulnerabilities, often stemming from improper input validation and configuration handling. While no major public incidents have been widely documented, the project maintains a moderate CVE count with six currently recorded issues. The software's modular architecture and regular updates help mitigate risks, though administrators must remain vigilant about applying patches and hardening configurations to prevent exploitation of known weaknesses in its IKE daemon and control interface.