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

Summaryinfo

A vulnerability labeled as critical has been found in TP-Link TL-WR841N V11 up to 160325. Impacted is an unknown function of the file /userRpm/WlanNetworkRpm.htm of the component Web Service. The manipulation results in buffer overflow. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability was named CVE-2025-53711. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in TP-Link TL-WR841N V11 up to 160325. It has been classified as critical. Affected is an unknown part of the file /userRpm/WlanNetworkRpm.htm of the component Web Service. The manipulation 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. CVE summarizes:

A vulnerability has been found in TP-Link TL-WR841N v11, TL-WR842ND v2 and TL-WR494N v3. The vulnerability exists in the /userRpm/WlanNetworkRpm.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 for download at tp-link.com. This vulnerability is traded as CVE-2025-53711 since 07/09/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are necessary for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/19/2026).

By approaching the search of inurl:userRpm/WlanNetworkRpm.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.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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/

CPE 2.3info

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CPE 2.2info

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