An information disclosure vulnerability exists in the ClientConnect() functionality of SoftEther VPN 5.01.9674. A specially crafted network packet can lead to a disclosure of sensitive information. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.
https://www.softether.org/9-about/News/904-SEVPN202301
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1768