The ping functionality in cgi-bin/diagnostic.cgi on Seowon Intech SWC-9100 routers allows remote attackers to execute arbitrary commands via shell metacharacters in the ping_ipaddr parameter.

cgi-bin/reboot.cgi on Seowon Intech SWC-9100 routers allows remote attackers to (1) cause a denial of service (reboot) via a default_reboot action or (2) reset all configuration values via a factory_default action.

SeowonIntech SWC 5100W WIMAX Bootloader 1.18.19.0, HW 0.0.7.0, and FW 1.11.0.1, 1.9.9.4 are vulnerable to OS Command Injection. which allows attackers to take over the system with root privilege by abusing doSystem() function.

Seowon 130-SLC router all versions as of 2021-09-15 is vulnerable to Remote Code Execution via the queriesCnt parameter.

SEOWON INTECH SLC-130 And SLR-120S devices allow Remote Code Execution via the ipAddr parameter to the system_log.cgi page.

On Seowon Intech routers, there is a Command Injection vulnerability in diagnostic.cgi via shell metacharacters in the ping_ipaddr parameter.