The National Security Agency (NSA) has released an advisory on advanced persistent threat (APT) actors exploiting multiple vulnerabilities in Virtual Private Network (VPN) applications. It is recommended that you take the necessary precautions by ensuring your products are always updated.
For more information on the advisory you can follow this url:
The Guyana National CIRT recommends users and administration to review these updates and to apply them where necessary.
National Security Agency Releases Advisory on Mitigating Recent VPN Vulnerabilities (US-Cert)