CVE-2025-3667: TOTOLINK A3700R cstecgi.cgi setUPnPCfg access control

6.9 CVSS

Description

A vulnerability was found in TOTOLINK A3700R 9.1.2u.5822_B20200513. It has been classified as critical. This affects the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi. The manipulation leads to improper access controls. It is possible to initiate 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. Es wurde eine Schwachstelle in TOTOLINK A3700R 9.1.2u.5822_B20200513 ausgemacht. Sie wurde als kritisch eingestuft. Es betrifft die Funktion setUPnPCfg der Datei /cgi-bin/cstecgi.cgi. Mit der Manipulation mit unbekannten Daten kann eine improper access controls-Schwachstelle ausgenutzt werden. Der Angriff kann über das Netzwerk erfolgen. Der Exploit steht zur öffentlichen Verfügung.

Classification

CVE ID: CVE-2025-3667

CVSS Base Severity: MEDIUM

CVSS Base Score: 6.9

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

Problem Types

Improper Access Controls Incorrect Privilege Assignment

Affected Products

Vendor: TOTOLINK

Product: A3700R

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.09% (probability of being exploited)

EPSS Percentile: 26.17% (scored less or equal to compared to others)

EPSS Date: 2025-04-18 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-3667
https://vuldb.com/?id.304845
https://vuldb.com/?ctiid.304845
https://vuldb.com/?submit.551299
https://lavender-bicycle-a5a.notion.site/TOTOLINK-A3700R-setUPnPCfg-1cb53a41781f802b8b16f973366ee5e3?pvs=4
https://www.totolink.net/

Timeline