CVE-2025-3665: totolink a3700r_firmware Incorrect Privilege Assignment

Vulnerability summary

CVE-2025-3665 is a medium (CVSS 6.9) Incorrect Privilege Assignment vulnerability in totolink a3700r_firmware. EPSS estimates a 0.61% chance of exploitation in the next 30 days, higher than 48.5% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 16-04-2025
   PublishedVulnerability first disclosed.
2. 17-04-2025
   Last modifiedVulnerability information updated.

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.

• CWE-266Incorrect Privilege AssignmentA product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.
• CWE-284Improper Access ControlThe product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.