telnetd.exe in Pragma TelnetServer 7.0.4.589 allows remote attackers to cause a denial of service (process crash and resource exhaustion) via a crafted TELOPT PRAGMA LOGON telnet option, which triggers a NULL pointer dereference.

SLnet.exe in SeattleLab SLNet RF Telnet Server 4.1.1.3758 and earlier allows user-assisted remote attackers to cause a denial of service (crash) via unspecified telnet options, which triggers a NULL pointer dereference. NOTE: the crash is not user-assisted when the server is running in debug mode.

Heap-based buffer overflow in Foxit WAC Server 2.1.0.910, 2.0 Build 3503, and earlier allows remote attackers to cause a denial of service (crash) and execute arbitrary code via a Telnet request with long options.

Unspecified vulnerability in the LDAP authentication feature in Aruba Mobility Controller 2.3.6.15, 2.5.2.11, 2.5.4.25, 2.5.5.7, 3.1.1.3, and 2.4.8.11-FIPS or earlier allows remote attackers to bypass authentication mechanisms and obtain management or VPN interface access.

TUTOS 1.3 does not restrict access to php/admin/cmd.php, which allows remote attackers to execute arbitrary shell commands via the cmd parameter in a direct request.