WFTPD and WFTPD Pro 2.41 allows local users to cause a denial of service by executing the RENAME TO (RNTO) command before a RENAME FROM (RNFR) command.
From 神龙GPT (AIGC)
WFTPD 和 WFTPD Pro 2.41 允许本地用户通过在执行 RENAME FROM (RNFR) 命令之前执行 RENAME TO (RNTO) 命令来导致服务拒绝。