Vulnerability · Published Apr 16, 2025 · Assigned by VulDB
CVE-2025-3675TOTOLINK A3700R cstecgi.cgi setL2tpServerCfg access control
Medium 5.3
In plain English
A medium-severity improper access control in A3700R from TOTOLINK. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.6%top 50.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-284, CWE-266 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
References
- VDB-304964 | TOTOLINK A3700R cstecgi.cgi setL2tpServerCfg access control vdb-entry, technical-description
- VDB-304964 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #551304 | TOTOLINK A3700R V9.1.2u.5822_B20200513 Improper Access Controls third-party-advisory
- https://lavender-bicycle-a5a.notion.site/TOTOLINK-A3700R-setL2tpServerCfg-1cb53a41781f80319d38dc5a8e9174ae?pvs=4 exploit
- https://www.totolink.net/ product