CVE-2026-5353: Trendnet TEW-657BRM setup.cgi ping_test os command injection
A vulnerability was detected in Trendnet TEW-657BRM 1.00.1. Affected is the function pingtest of the file /setup.cgi. Performing a manipulation of the argument c4IPAddr results in os command injection. Remote exploitation of the attack is possible. The exploit is now 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-5353?
CVE-2026-5353 is considered a high-severity vulnerability due to its potential for remote code execution.
How do I fix CVE-2026-5353?
To fix CVE-2026-5353, update the Trendnet TEW-657BRM firmware to the latest version available from the manufacturer.
What devices are affected by CVE-2026-5353?
CVE-2026-5353 affects the Trendnet TEW-657BRM with firmware version 1.00.1.
What kind of attack can be executed through CVE-2026-5353?
CVE-2026-5353 allows for OS command injection, potentially enabling an attacker to execute arbitrary commands on the affected device.
Is there a workaround for CVE-2026-5353 if I cannot update my device?
As a temporary workaround for CVE-2026-5353, restrict access to the device management interface from untrusted networks.