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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-3664

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

MEDIUM 6.9EPSS 0.61%

Does this matter?

Lower severity and a low EPSS score (0.61%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 4.0
6.9 MEDIUMCVSS: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/M
EPSS
0.61% probability · 47th percentile
CISA KEV
Not listed
Weakness
CWE-266, CWE-284
Affected
totolink/a3700r firmware
Source
cna@vuldb.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.