CVE-2026-1143: TOTOLINK A3700R cstecgi.cgi setWiFiEasyGuestCfg buffer overflow
A weakness has been identified in TOTOLINK A3700R 9.1.2u.5822B20200513. This affects the function setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument ssid can lead to buffer overflow. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-1143?
CVE-2026-1143 is classified as a high severity vulnerability due to the potential for buffer overflow exploitation.
How do I fix CVE-2026-1143?
To mitigate CVE-2026-1143, users should update their TOTOLINK A3700R firmware to the latest version that addresses this vulnerability.
What impact does CVE-2026-1143 have on my network?
CVE-2026-1143 can allow an attacker to execute arbitrary code and gain unauthorized access to the device, jeopardizing network security.
Which devices are affected by CVE-2026-1143?
CVE-2026-1143 specifically affects the TOTOLINK A3700R router running the firmware version 9.1.2u.5822_B20200513.
How can I identify if my device is vulnerable to CVE-2026-1143?
You can identify if your device is vulnerable to CVE-2026-1143 by checking its firmware version and comparing it with the affected version.