CVE-2025-3675: TOTOLINK A3700R cstecgi.cgi setL2tpServerCfg access control

6.9 CVSS

Description

A vulnerability was found in TOTOLINK A3700R 9.1.2u.5822_B20200513. It has been rated as critical. Affected by this issue is the function setL2tpServerCfg 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. Eine kritische Schwachstelle wurde in TOTOLINK A3700R 9.1.2u.5822_B20200513 ausgemacht. Hierbei geht es um die Funktion setL2tpServerCfg der Datei /cgi-bin/cstecgi.cgi. Dank der Manipulation mit unbekannten Daten kann eine improper access controls-Schwachstelle ausgenutzt werden. Umgesetzt werden kann der Angriff über das Netzwerk. Der Exploit steht zur öffentlichen Verfügung.

Classification

CVE ID: CVE-2025-3675

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-2025-3675
https://vuldb.com/?id.304964
https://vuldb.com/?ctiid.304964
https://vuldb.com/?submit.551304
https://lavender-bicycle-a5a.notion.site/TOTOLINK-A3700R-setL2tpServerCfg-1cb53a41781f80319d38dc5a8e9174ae?pvs=4
https://www.totolink.net/

Timeline