Totolink N300RH 6.1c.1353_B20190305 Web Management Interface wireless.so setWiFiBasicConfig KeyStr stack-based overflow

Summaryinfo

A vulnerability labeled as critical has been found in Totolink N300RH 6.1c.1353_B20190305. This affects the function setWiFiBasicConfig of the file wireless.so of the component Web Management Interface. Executing a manipulation of the argument KeyStr can lead to stack-based overflow. This vulnerability appears as CVE-2026-10187. The attack may be performed from remote. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in Totolink N300RH 6.1c.1353_B20190305. It has been declared as critical. This vulnerability affects the function setWiFiBasicConfig of the file wireless.so of the component Web Management Interface. The manipulation of the argument KeyStr with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared for download at wx.mail.qq.com. This vulnerability was named CVE-2026-10187. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known.

It is possible to download the exploit at wx.mail.qq.com. It is declared as proof-of-concept.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-33509). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Totolink

Name

• N300RH

Version

• 6.1c.1353_B20190305

License

• commercial

Website

• Vendor: https://www.totolink.net/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Submitinfo

Accepted

• Submit #819971: Totolink N300RHv4 V6.1c.1353_B20190305 stack-based buffer overflow (by luotuo)

Duplicate

• Submit #XXXXXX: Xxxxxxxx Xxxxxxxx Xx.xx.xxxx_xxxxxxxxx Xxxxx-xxxxx Xxxxxx Xxxxxxxx (by luotuo)

Once again VulDB remains the best source for vulnerability data.

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