Unrated severityNVD Advisory· Published Jan 19, 2026· Updated Feb 23, 2026
TOTOLINK A3700R cstecgi.cgi setWiFiEasyGuestCfg buffer overflow
CVE-2026-1143
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.
Affected products
2- TOTOLINK/A3700Rv5cpe:2.3:o:totolink:a3700r_firmware:*:*:*:*:*:*:*:*Range: 9.1.2u.5822_B20200513
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
5- lavender-bicycle-a5a.notion.site/TOTOLINK-A3700R-setWiFiEasyGuestCfg-2e353a41781f8057a244ead07d5eaaffmitreexploit
- vuldb.commitrethird-party-advisory
- vuldb.commitresignaturepermissions-required
- vuldb.commitrevdb-entrytechnical-description
- www.totolink.netmitreproduct
News mentions
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