TP-Link TL-WR841N V11 up to 160325 Web Service WlanNetworkRpm_AP.htm WlanNetworkRpm_AP buffer overflow

Summaryinfo

A vulnerability marked as critical has been reported in TP-Link TL-WR841N V11 up to 160325. The affected element is the function WlanNetworkRpm_AP of the file /userRpm/WlanNetworkRpm_AP.htm of the component Web Service. This manipulation causes buffer overflow. This vulnerability only affects products that are no longer supported by the maintainer. The identification of this vulnerability is CVE-2025-53712. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in TP-Link TL-WR841N V11 up to 160325. It has been declared as critical. Affected by this vulnerability is the function WlanNetworkRpm_AP of the file /userRpm/WlanNetworkRpm_AP.htm of the component Web Service. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been found in TP-Link TL-WR841N V11. The vulnerability exists in the /userRpm/WlanNetworkRpm_AP.htm file due to missing input parameter validation, which may lead to the buffer overflow to cause a crash of the web service and result in a denial-of-service (DoS) condition. The attack may be launched remotely. This vulnerability only affects products that are no longer supported by the maintainer.

The advisory is shared at tp-link.com. This vulnerability is known as CVE-2025-53712 since 07/09/2025. The exploitation appears to be easy. The attack can be launched remotely. Additional levels of successful authentication are needed for exploitation. 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 08/02/2025).

By approaching the search of inurl:userRpm/WlanNetworkRpm_AP.htm it is possible to find vulnerable targets with Google Hacking.

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

• TP-Link

Name

• TL-WR841N V11

Version

• 160325

License

• commercial

Support

• end of life

Website

• Vendor: https://www.tp-link.com/

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

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