Tenda W15E 15.11.0.10 HTTP formDelwebAuthPic picName buffer overflow

Summaryinfo

A vulnerability was found in Tenda W15E 15.11.0.10. It has been classified as critical. This vulnerability affects the function formDelwebAuthPic of the component HTTP Handler. Performing a manipulation of the argument picName results in buffer overflow. This vulnerability is identified as CVE-2026-36811. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Tenda W15E 15.11.0.10. This affects the function formDelwebAuthPic of the component HTTP Handler. The manipulation of the argument picName with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Shenzhen Tenda Technology Co., Ltd Tenda W15E v15.11.0.10 was discovered to contain a buffer overflow in the picName parameter of the formDelwebAuthPic function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-36811 since 04/06/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/09/2026).

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• Tenda

Name

• W15E

Version

• 15.11.0.10

License

• commercial

Website

• Vendor: https://www.tenda.com.cn/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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