What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-04-16 · updated 2026-06-17
• Weakness: CWE-266

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

• TOTOLINK A3700R: 9.1.2u.5822_b20200513

References

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

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