CVE-2026-5353
MediumCVSS 6.3Exploitation Probability (EPSS)
Very high risk91th percentile - higher than 91% of all known CVEs
Summary
A vulnerability was detected in Trendnet TEW-657BRM 1.00.1. The function ping_test in the file /setup.cgi is affected by OS command injection via manipulation of the argument c4_IPAddr. The attack can be launched remotely and the exploit is now public. The vendor confirmed the product is end-of-life since 2011 and no patch will be released.
Risk Assessment
A remote attacker could execute arbitrary system commands on the device. Since the product is no longer supported, the risk is permanent and requires decommissioning.
Recommendation
Immediately decommission the device and replace it with a newer, supported model. No patch is available.
Original NVD description (English source)
A vulnerability was detected in Trendnet TEW-657BRM 1.00.1. Affected is the function ping_test of the file /setup.cgi. Performing a manipulation of the argument c4_IPAddr 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.