https://tunnelcrack.mathyvanhoef.com/
TunnelCrack: Widespread design flaws in VPN clients
We present two widespread design flaws in VPN client. These can be abused to make a victim leak traffic in plaintext outside the protected VPN tunnel.
design flawstunnelcrackwidespreadvpnclients
https://www.softether.org/9-about/News/905-TunnelCrack
2023/08/31: TunnelCrack protection implemented in SoftEther VPN Client - SoftEther VPN Project
softether vpntunnelcrackprotection