CVE-2025-3663

CWE-266 CWE-284 — Improper Access Control4 documents4 sources

Severity

6.9MEDIUM

EPSS

1.6%

top 18.05%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Totolink A3700r Totolink A3700r Firmware

Timeline

PublishedApr 16

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 vector

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

Affected Packages2 packages

▶CVEListV5totolink/a3700r9.1.2u.5822_B20200513

▶NVDtotolink/a3700r_firmware9.1.2u.5822_b20200513

🔴Vulnerability Details

CVEList

TOTOLINK A3700R Password cstecgi.cgi setWiFiEasyGuestCfg access control↗2025-04-16

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GHSA

GHSA-c9r8-2f47-ccg6: A vulnerability, which was classified as critical, has been found in TOTOLINK A3700R 9↗2025-04-16

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🔍Detection Rules

Suricata

ET WEB_SPECIFIC_APPS Totolink A3700R Multiple Authentication Bypass cstecgecgi.cgi Endpoints (CVE-2025-3663 - CVE-2025-3668)↗2025-04-16

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