CVE-2025-3665: TOTOLINK A3700R cstecgi.cgi setSmartQosCfg access control

6.9 CVSS

Description

A vulnerability has been found in TOTOLINK A3700R 9.1.2u.5822_B20200513 and classified as critical. Affected by this vulnerability is the function setSmartQosCfg of the file /cgi-bin/cstecgi.cgi. The manipulation leads to improper access controls. The attack can 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. In TOTOLINK A3700R 9.1.2u.5822_B20200513 wurde eine Schwachstelle gefunden. Sie wurde als kritisch eingestuft. Dabei geht es um die Funktion setSmartQosCfg der Datei /cgi-bin/cstecgi.cgi. Dank der Manipulation mit unbekannten Daten kann eine improper access controls-Schwachstelle ausgenutzt werden. Die Umsetzung des Angriffs kann dabei über das Netzwerk erfolgen. Der Exploit steht zur öffentlichen Verfügung.

Classification

CVE ID: CVE-2025-3665

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: 0.1% (probability of being exploited)

EPSS Percentile: 28.22% (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-2025-3665
https://vuldb.com/?id.304843
https://vuldb.com/?ctiid.304843
https://vuldb.com/?submit.551297
https://lavender-bicycle-a5a.notion.site/TOTOLINK-A3700R-setSmartQosCfg-1cb53a41781f80ce9b7aca2c6ff9bea4?pvs=4
https://www.totolink.net/

Timeline