CVE-2025-3663: TOTOLINK A3700R Password cstecgi.cgi setWiFiEasyGuestCfg access control
A vulnerability, which was classified as critical, has been found in TOTOLINK A3700R 9.1.2u.5822B20200513. This issue affects the function setWiFiEasyCfg/setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi of the component Password Handler. The manipulation leads to improper access controls. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-3663?
CVE-2025-3663 is classified as a critical vulnerability.
What components are affected by CVE-2025-3663?
CVE-2025-3663 affects the Password Handler component in the TOTOLINK A3700R router.
How do I fix CVE-2025-3663?
To fix CVE-2025-3663, update the TOTOLINK A3700R firmware to the latest version provided by the manufacturer.
What type of attack does CVE-2025-3663 enable?
CVE-2025-3663 enables unauthorized access due to improper handling in the setWiFiEasyCfg/setWiFiEasyGuestCfg functions.
Which product is impacted by CVE-2025-3663?
The impacted product by CVE-2025-3663 is the TOTOLINK A3700R router.