CVE-2025-3664

Name: CVE-2025-3664
Creator: NVD / NIST
Published: 2025-04-16T03:15:17.883+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.9/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2025-3664 is a medium-severity vulnerability rated 6.9/10 on the CVSS scale. A vulnerability, which was classified as critical, was found in TOTOLINK A3700R 9.1.2u.5822_B20200513. Affected is the function setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

A vulnerability, which was classified as critical, was found in TOTOLINK A3700R 9.1.2u.5822_B20200513. Affected is the function setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi. The manipulation leads to improper access controls. It is possible to launch the attack 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.

Metrics

CVSS 3.1

5.3/10

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

CVSS 4.0

6.9/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.50%

39.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Totolink	A3700r Firmware	9.1.2u.5822_b20200513

References

https://lavender-bicycle-a5a.notion.site/TOTOLINK-A3700R-setWiFiEasyGuestCfg-1cb53a41781f805f9ee3f1b2d362d3f2?pvs=4Exploit
https://vuldb.com/?ctiid.304842Permissions Required, VDB Entry
https://vuldb.com/?id.304842Third Party Advisory, VDB Entry
https://vuldb.com/?submit.551296Third Party Advisory, VDB Entry
https://www.totolink.net/Product
https://lavender-bicycle-a5a.notion.site/TOTOLINK-A3700R-setWiFiEasyGuestCfg-1cb53a41781f805f9ee3f1b2d362d3f2Exploit

Timeline

Published: Apr 16, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-3664?

How severe is CVE-2025-3664?

CVE-2025-3664 has a CVSS score of 6.9/10 (MEDIUM severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2025-3664?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-3664?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST