A vulnerability classified as critical has been found in WAVLINK WN530H4, WN530HG4 and WN572HG3 up to 20221028. Affected is the function set_ipv6 of the file internet.cgi. The manipulation of the argument IPv6OpMode/IPv6IPAddr/IPv6WANIPAddr/IPv6GWAddr leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability was found in WAVLINK WN530H4, WN530HG4 and WN572HG3 up to 20221028. It has been rated as critical. This issue affects the function set_ipv6 of the file firewall.cgi. The manipulation of the argument dhcpGateway leads to command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability was found in WAVLINK WN530H4, WN530HG4 and WN572HG3 up to 20221028. It has been classified as critical. Affected is the function Goto_chidx of the file login.cgi of the component Front-End Authentication Page. The manipulation of the argument wlanUrl leads to stack-based buffer overflow. The attack can only be initiated within the local network. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability was found in WAVLINK WN530H4, WN530HG4 and WN572HG3 up to 20221028 and classified as critical. This issue affects the function ping_ddns of the file internet.cgi. The manipulation of the argument DDNS leads to command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

An access control issue in Wavlink WL-WN530HG4 M30HG4.V5030.201217 allows unauthenticated attackers to download configuration data and log files and obtain admin credentials.

An access control issue in Wavlink WN530HG4 M30HG4.V5030.191116 allows unauthenticated attackers to download log files and configuration data.

An access control issue in Wavlink WN530HG4 M30HG4.V5030.191116 allows attackers to obtain usernames and passwords via view-source:http://IP_ADDRESS/set_safety.shtml?r=52300 and searching for [var syspasswd].

Wavlink WN530HG4 M30HG4.V5030.191116 was discovered to contain a hardcoded encryption/decryption key for its configuration files at /etc_ro/lighttpd/www/cgi-bin/ExportAllSettings.sh.

An issue was discovered on Wavlink WL-WN530HG4 M30HG4.V5030.191116 devices. Multiple shell metacharacter injection vulnerabilities exist in CGI scripts, leading to remote code execution with root privileges.

An issue was discovered on Wavlink WL-WN530HG4 M30HG4.V5030.191116 devices. Multiple buffer overflow vulnerabilities exist in CGI scripts, leading to remote code execution with root privileges. (The set of affected scripts is similar to CVE-2020-12266.)