From NVD
MERAK Mail Server 7.6.0 with Icewarp Web Mail 5.3.0 and Mail Server 7.6.4r with Icewarp Mail Server 5.3.2 uses weak encryption in the (1) users.cfg, (2) settings.cfg, (3) users.dat or (4) user.dat files, which allows local users to extract the passwords.
From 神龙GPT (AIGC)
MERAK Mail Server 7.6.0 与 Icewarp Web Mail 5.3.0 以及 Mail Server 7.6.4r 与 Icewarp Mail Server 5.3.2 使用 (1) users.cfg, (2) settings.cfg, (3) users.dat 或 (4) user.dat 文件的弱加密，这允许本地用户提取密码。