CVE-2025-3663 — MEDIUM (5.3)

Vulnerability Description

A vulnerability, which was classified as critical, has been found in TOTOLINK A3700R 9.1.2u.5822_B20200513. 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.

CVSS Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Totolink	A3700R Firmware	9.1.2u.5822_b20200513
Totolink	A3700R	-

Related Weaknesses (CWE)

CWE-266 CWE-284

References

https://lavender-bicycle-a5a.notion.site/TOTOLINK-A3700R-setWiFiEasyCfg-1cb53a41ExploitThird Party Advisory
https://vuldb.com/?ctiid.304841Permissions Required
https://vuldb.com/?id.304841Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.551295Third Party AdvisoryVDB Entry
https://www.totolink.net/Product

FAQ

What is CVE-2025-3663?

CVE-2025-3663 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A vulnerability, which was classified as critical, has been found in TOTOLINK A3700R 9.1.2u.5822_B20200513. This issue affects the function setWiFiEasyCfg/setWiFiEasyGuestCfg of the file /cgi-bin/cste...

How severe is CVE-2025-3663?

CVE-2025-3663 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-3663?

Check the references section above for vendor advisories and patch information. Affected products include: Totolink A3700R Firmware, Totolink A3700R.