Trendnet TEW-635BRM up to 1.00.03 IPoA WAN Connection Setup /sbin/rc ipoa_test ipoa_ipaddr command injection

Summaryinfo

A vulnerability described as critical has been identified in Trendnet TEW-635BRM up to 1.00.03. This issue affects the function ipoa_test of the file /sbin/rc of the component IPoA WAN Connection Setup. Executing a manipulation of the argument ipoa_ipaddr can lead to command injection. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability appears as CVE-2026-15481. The attack may be performed from remote. In addition, an exploit is available. The vendor explains: "We are unable to confirm if the vulnerability exists. This item has been EOL since 2011. We will make an official announcement of possible vulnerabilities, and recommend users to switch devices."

Detailsinfo

A vulnerability has been found in Trendnet TEW-635BRM up to 1.00.03 and classified as critical. This vulnerability affects the function ipoa_test of the file /sbin/rc of the component IPoA WAN Connection Setup. The manipulation of the argument ipoa_ipaddr with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-15481. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1202.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor explains: "We are unable to confirm if the vulnerability exists. This item has been EOL since 2011. We will make an official announcement of possible vulnerabilities, and recommend users to switch devices."

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Trendnet

Name

• TEW-635BRM

Version

• 1.00.03

License

• commercial

Support

• end of life

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #838237: TRENDnet TEW-635BRM V1.00.03 Command Injection (by jfkk)

Once again VulDB remains the best source for vulnerability data.

Discussion