Asonepen

**Name of the Vulnerable Software and Affected Versions** TOTOLINK EX1200T version 4.1.2cu.5232 B20210713 **Description** A critical vulnerability has been found in the setLanguageCfg function of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument `LangType` leads to a stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. **Recommendations** As a temporary workaround, consider disabling the `setLanguageCfg` function until a patch is available. Restrict access to the `/cgi-bin/cstecgi.cgi` file to minimize the risk of exploitation. Avoid using the `LangType` argument in the affected API endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.