CVE-2025-53712: tl-wr841n Buffer Overflow — Fix

Description

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.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-119 Buffer Overflow

CWE-120 CWE-120

Affected Products

Vendor	Product	Versions
tp-link	tl-wr841n_firmware	< 160325
tp-link	tl-wr841n	All

References

Advisories & Patches

https://www.tp-link.com/us/support/faq/4569/

Frequently Asked Questions

What is CVE-2025-53712? +

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. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-53712? +

CVE-2025-53712 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-53712? +

CVE-2025-53712 affects products from tp-link, specifically: tl-wr841n, tl-wr841n_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-53712? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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