glFtpD includes a default glftpd user account with a default password and a UID of 0.

glFtpD allows local users to gain privileges via metacharacters in the SITE ZIPCHK command.

The privpath directive in glftpd 1.18 allows remote attackers to bypass access restrictions for directories by using the file name completion capability.

glFTPD 1.23 allows remote attackers to cause a denial of service (CPU consumption) via a LIST command with an argument that contains a large number of * (asterisk) characters.

Multiple directory traversal vulnerabilities in sitenfo.sh, sitezipchk.sh, and siteziplist.sh in Glftpd 1.26 to 2.00 allow remote authenticated users to (1) determine the existence of arbitrary files, (2) list files in restricted directories, or (3) read arbitrary files from within ZIP or gzip files, via .. (dot dot) sequences and globbing ("*") characters in a SITE NFO command.

Unspecified vulnerability in glFTPd before 2.01 RC5 allows remote attackers to bypass IP checks via a crafted DNS hostname, possibly a hostname that appears to be an IP address.

An issue was discovered in glFTPd 2.11a that allows remote attackers to cause a denial of service via exceeding the connection limit.