PT-2025-16553 · Totolink · Totolink A3700R

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Published

2025-04-15

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Updated

2025-04-22

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CVE-2025-3664

CVSS v4.0

6.9

Medium

VectorAV: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
Name of the Vulnerable Software and Affected Versions TOTOLINK A3700R version 9.1.2u.5822 B20200513
Description A critical vulnerability was found in the TOTOLINK A3700R, affecting the function setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi. The manipulation leads to improper access controls, allowing for remote attacks. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond.
Recommendations As a temporary workaround, consider disabling the setWiFiEasyGuestCfg function until a patch is available. Restrict access to the /cgi-bin/cstecgi.cgi file to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Incorrect Privilege Assignment

Improper Access Control

Weakness Enumeration

CWE-266CWE-284

Related Identifiers

BDU:2025-05806
CVE-2025-3664

Affected Products

Totolink A3700R