The WinGate telnet proxy allows remote attackers to cause a denial of service via a large number of connections to localhost.

The WinGate proxy is installed without a password, which allows remote attackers to redirect connections without authentication.

Remote attackers can perform a denial of service in WinGate machines using a buffer overflow in the Winsock Redirector Service.

Directory traversal vulnerability in the logfile service of Wingate 4.1 Beta A and earlier allows remote attackers to read arbitrary files via a .. (dot dot) attack via an HTTP GET request that uses encoded characters in the URL.

WinGate 5.2.3 build 901 and 6.0 beta 2 build 942, and other versions such as 5.0.5, allows remote attackers to read arbitrary files from the root directory via a URL request to the wingate-internal directory.

WinGate 5.2.3 build 901 and 6.0 beta 2 build 942, and other versions such as 5.0.5, allows remote attackers to read arbitrary files via leading slash (//) characters in a URL request to the wingate-internal directory.

Multiple implementations of the DNS protocol, including (1) Poslib 1.0.2-1 and earlier as used by Posadis, (2) Axis Network products before firmware 3.13, and (3) Men & Mice Suite 2.2x before 2.2.3 and 3.5.x before 3.5.2, allow remote attackers to cause a denial of service (CPU and network bandwidth consumption) by triggering a communications loop via (a) DNS query packets with localhost as a spoofed source address, or (b) a response packet that triggers a response packet.

Directory traversal vulnerability in the IMAP server in WinGate 6.1.2.1094 and 6.1.3.1096, and possibly other versions before 6.1.4 Build 1099, allows remote authenticated users to read email of other users, or perform unauthorized operations on directories, via the (1) CREATE, (2) SELECT, (3) DELETE, (4) RENAME, (5) COPY, (6) APPEND, and (7) LIST commands.

Stack-based buffer overflow in the WWW Proxy Server of Qbik WinGate 6.1.1.1077 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long URL HTTP request.

WinGate v9.4.1.5998 has insecure permissions for the installation directory, which allows local users to gain privileges by replacing an executable file with a Trojan horse.