CVE-2026-3696: Totolink N300RH CGI cstecgi.cgi setWiFiWpsConfig os command injection

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-03-08 · updated 2026-06-17
Weakness: CWE-77

Description

A vulnerability was found in Totolink N300RH 6..1c.1353_B20190305. The affected element is the function setWiFiWpsConfig of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation results in os command injection. The attack can be initiated remotely. The exploit has been made public and could be used.

Affected products

Totolink N300RH: 6.1c.1353_b20190305

References

https://github.com/JXBbozaihuang/vuln-research/issues/2
https://vuldb.com/?ctiid.349642
https://vuldb.com/?id.349642
https://vuldb.com/?submit.765681
https://www.totolink.net/

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