[2025 July Notification] SecuExtender Perpetual Version Vulnerability

Zyxel_Bruce

Dear Valued Users,

We would like to inform you that the SecuExtender VPN client with the perpetual version IPSec_3.8.204.61.32 will soon be removed from our official website due to a reported security vulnerability related to legacy Windows 7 environments. Under certain conditions, this vulnerability may allow unauthorized access or compromise of VPN communications.

Zyxel has ceased development and security patching for this software as of its official end-of-support date, September 30, 2023. As a result, it no longer meets current security standards, and continued use may expose users to elevated cybersecurity risks.

✅ Action Required

Zyxel urges all customers to stop using the vulnerable software and switch to the latest supported release below:

• Windows version: SecuExtender SSL VPN Client 7.7.50.008
• macOS version: SecuExtender SSL VPN Client 3.2.4.19

👉 You can download the updated versions here

🛒 Licenses can be purchased through channel partners and authorized resellers, or online via the Zyxel Marketplace — choose the option that best suits your needs.

License part numbers (valid for both Windows/macOS clients):

License P/N	Description
SECUEXTENDER-ZZ3Y01F	SecuExtender; Zero Trust IPSec/SSL VPN Client Subscription for Windows/macOS; 1-user; 3YR
SECUEXTENDER-ZZ3Y05F	SecuExtender; Zero Trust IPSec/SSL VPN Client Subscription for Windows/macOS; 5-user; 3YR
SECUEXTENDER-ZZ3Y10F	SecuExtender; Zero Trust IPSec/SSL VPN Client Subscription for Windows/macOS; 10-user; 3YR
SECUEXTENDER-ZZ3Y50F	SecuExtender; Zero Trust IPSec/SSL VPN Client Subscription for Windows/macOS; 50-user; 3YR
SECUEXTENDER-ZZ5Y01F	SecuExtender; Zero Trust IPSec/SSLVPN Client Subscription for Windows/macOS; 1-user; 5YR

If you need assistance at any time, our support team is available to help. Thank you for being part of the Zyxel community. We’re committed to keeping your network experience both safe and seamless.