CVE-2024-1783: Totolink LR1200GB Firmware

Critical severity, CVSS 9.8. EPSS: 2% chance of exploitation in the next 30 days.

A vulnerability classified as critical has been found in Totolink LR1200GB 9.1.0u.6619_B20230130/9.3.5u.6698_B20230810. Affected is the function loginAuth of the file /cgi-bin/cstecgi.cgi of the component Web Interface. The manipulation of the argument http_host 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. VDB-254574 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Totolink LR1200GB Firmware: version 9.1.0u.6619_b20230130 only; version 9.3.5u.6698_b20230810 only

Published 2024-02-23. Last modified 2026-06-17.