RCE in Trendnet Tew-657brm
CVE-2026-5355
A vulnerability has been found in Trendnet TEW-657BRM 1.00.1. Affected by this issue is the function vpn_drop of the file /setup.cgi. The manipulation of the argument policy_name leads to os command injection. The attack is possible to be…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.004 (59.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Trendnet Tew-657brm — versions 1.00.1
- Trendnet Tew-657brm_firmware — versions 1.00.1
Weakness classification (CWE)
References
- VDB-354708 | Trendnet TEW-657BRM setup.cgi vpn_drop os command injection (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-354708 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #781569 | TRENDnet TEW-657BRM 1.00.1 Command Injection (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2026-5355?
- CVE-2026-5355 is a medium-severity vulnerability in Trendnet Tew-657brm, classified under Command Injection. CVSS score: 6.3/10. Published 2026-04-02.
- How severe is CVE-2026-5355?
- Medium severity. CVSS v3 base score is 6.3 out of 10.