Ex1200L

Totolink EX1200L router is vulnerable to Buffer Overflow in the login functionality in cgi-bin/cstecgi.cgi endpoint. This vulnerability could be exploited to cause the program to crash and to execute code remotely. This allows the attacker to perform actions as root including reading and editing data, as well as bricking the router. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 9.3.5u.6146_B20201023 but may also affect other versions.

Published: 2026-06-23T12:08:09.508Z
Updated: 2026-06-23T13:32:50.690Z

A vulnerability has been found in TOTOLINK EX1200L 9.3.5u.6146_B20201023 and classified as critical. Affected by this vulnerability is the function setLanguageCfg of the file /www/cgi-bin/cstecgi.cgi. The manipulation of the argument langType leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Published: 2024-08-18T18:00:07.558Z
Updated: 2024-08-21T18:16:05.783Z

A vulnerability, which was classified as critical, was found in TOTOLINK EX1200L 9.3.5u.6146_B20201023. Affected is the function setDefResponse of the file /www/cgi-bin/cstecgi.cgi. The manipulation of the argument IpAddress leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Published: 2024-08-18T17:00:05.376Z
Updated: 2024-08-19T13:39:15.433Z

A vulnerability, which was classified as critical, was found in TOTOLINK EX1200L 9.3.5u.6146_B20201023. This affects the function setParentalRules of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument week/sTime/eTime leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-273261 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Published: 2024-08-01T03:31:04.032Z
Updated: 2024-08-06T20:41:31.965Z

A vulnerability, which was classified as critical, has been found in TOTOLINK EX1200L 9.3.5u.6146_B20201023. Affected by this issue is the function loginauth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument http_host leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-273260. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Published: 2024-08-01T03:00:06.098Z
Updated: 2024-08-01T20:39:06.187Z