CVE-2026-1143
High
Description
A weakness has been identified in TOTOLINK A3700R 9.1.2u.5822_B20200513. 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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductTotolink A3700r Firmware
PublishedJan 19, 2026
First seenJan 19, 2026
Weakness typeCWE-120CWE-120CWE-119Memory buffer bounds error
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| totolink a3700r_firmware | 9.1.2u.5822_b20200513 | — |
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