CVE-2025-3666

CWE-266CWE-284 — Improper Access Control4 documents4 sources
Severity
6.9MEDIUM
EPSS
0.6%
top 31.03%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Totolink A3700rTotolink A3700r Firmware
Timeline
PublishedApr 16

Description

A vulnerability was found in TOTOLINK A3700R 9.1.2u.5822_B20200513 and classified as critical. Affected by this issue is the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi. The manipulation leads to improper access controls. The attack may be launched 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

2
CVEList
TOTOLINK A3700R cstecgi.cgi setDdnsCfg access control↗2025-04-16
▶
GHSA
GHSA-pvmj-4jf2-h6jf: A vulnerability was found in TOTOLINK A3700R 9↗2025-04-16
▶

🔍Detection Rules

1
Suricata
ET WEB_SPECIFIC_APPS Totolink A3700R Multiple Authentication Bypass cstecgecgi.cgi Endpoints (CVE-2025-3663 - CVE-2025-3668)↗2025-04-16
▶
CVE-2025-3666 (MEDIUM CVSS 6.9) | A vulnerability was found in TOTOLI | cvebase.io