Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue was fixed in Log4j 2.17.0, 2.12.3, and 2.3.1.

Buffer overflow in Transsoft Broker FTP Server 5.0 evaluation allows remote attackers to cause a denial of service and possibly execute arbitrary code via a CWD command with a large number of . (dot) characters.

Broker FTP server 5.9.5 for Windows NT and 9x allows a remote attacker to retrieve privileged web server system information by (1) issuing a CD command (CD C:) followed by the LS command, (2) specifying arbitrary paths in the UNC format (\\computername\sharename).

Broker FTP Server 5.9.5.0 allows a remote attacker to cause a denial of service by repeatedly issuing an invalid CD or CWD ("CD . .") command.