CVE-2026-5355

MEDIUM

Trendnet TEW-657BRM setup.cgi vpn_drop os command injection

Title source: cna
STIX 2.1

Description

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 carried out remotely. The exploit has been disclosed to the public and may be used. The vendor confirms, that "[t]he product in question (...) has been discontinued and end of life since June 23, 2011, that is more than 14 years ago. We no longer provide support for this product, so we are not able to confirm the vulnerabilities. We will make an announcement on our website's product support page and notify customers who registered their products with us." This vulnerability only affects products that are no longer supported by the maintainer.

References (4)

Core 4
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-354708 | Trendnet TEW-657BRM setup.cgi vpn_drop os command injection
https://vuldb.com/vuln/354708
Signature, Permissions Required signature permissions-required
VDB-354708 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/354708/cti
Third Party Advisory third-party-advisory
Submit #781569 | TRENDnet TEW-657BRM 1.00.1 Command Injection
https://vuldb.com/submit/781569

Scores

CVSS v3 6.3
EPSS 0.0478
EPSS Percentile 90.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-77 CWE-78
Status published
Products (2)
Trendnet/TEW-657BRM 1.00.1
trendnet/tew-657brm_firmware 1.00.1
Published Apr 02, 2026
Tracked Since Apr 02, 2026