CVE-2026-121599

Name of the Vulnerable Software and Affected Versions TOTOLINK A950RG version 4.1.2cu.5268 B20221104

Description A stack-based buffer overflow exists in the Multi-SSID Configuration component. The issue occurs within the setWiFiMultipleConfig() and delWiFiMultipleConfig() functions of the '/cgi-bin/cstecgi.cgi' endpoint. A remote attacker can trigger this by manipulating the wepkey2 or wepkey3 arguments.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability. Restrict access to the '/cgi-bin/cstecgi.cgi' endpoint to minimize the risk of exploitation.