CVE-2026-1143: high-severity vulnerability in TOTOLINK A3700R
TOTOLINK A3700R cstecgi.cgi setWiFiEasyGuestCfg buffer overflow
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.8%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
TOTOLINK · A3700RRelated CVEs — TOTOLINK A3700R
In the same product, most dangerous first.
CVE-2024-7156MEDIUMTOTOLINK A3700R apmib Configuration ExportSettings.sh information disclosureEPSS 13.3%CVE-2025-3663MEDIUMTOTOLINK A3700R Password cstecgi.cgi setWiFiEasyGuestCfg access controlEPSS 11.3%CVE-2024-7160MEDIUMTOTOLINK A3700R cstecgi.cgi setWanCfg command injectionEPSS 3.0%CVE-2025-3668MEDIUMTOTOLINK A3700R cstecgi.cgi setScheduleCfg access controlEPSS 1.4%CVE-2025-3667MEDIUMTOTOLINK A3700R cstecgi.cgi setUPnPCfg access controlEPSS 0.6%CVE-2025-3666MEDIUMTOTOLINK A3700R cstecgi.cgi setDdnsCfg access controlEPSS 0.6%