{"id":86704,"date":"2026-03-16T21:23:27","date_gmt":"2026-03-16T21:23:27","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-53715-denial-of-service-vulnerability-in-tp-link-tl-wr841n-v11","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-53715-denial-of-service-vulnerability-in-tp-link-tl-wr841n-v11\/","title":{"rendered":"CVE-2025-53715: Denial of Service Vulnerability in TP-Link TL-WR841N V11<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

This report discusses a significant vulnerability found in TP-Link TL-WR841N V11 devices. This vulnerability, identified as CVE-2025-53715, could potentially compromise the system or lead to data leakage. As the devices affected are no longer supported by the maintainer, it’s necessary for users to be aware and take corrective measures.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-53715
\nSeverity: High (7.5 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system compromise or data leakage. The vulnerability may cause a crash of the web service, resulting in a denial-of-service (DoS) condition.<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

TP-Link TL-WR841N | V11<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability resides in the \/userRpm\/Wan6to4TunnelCfgRpm.htm file. It stems from a lack of proper input parameter validation, which can lead to a buffer overflow. An attacker can exploit this by sending maliciously crafted packets to the target device, which can cause the web service to crash, leading to a denial-of-service condition. Furthermore, it may also potentially compromise the system or lead to data leakage.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

An example of how the vulnerability might be exploited is shown below. In this case, the attacker uses a POST request to send maliciously crafted data to the vulnerable endpoint.<\/p>\n

POST \/userRpm\/Wan6to4TunnelCfgRpm.htm HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\n{ \"buffer_overflow_payload\": \"...\" }<\/code><\/pre>\n
Mitigation and Prevention<\/strong><\/p>\n
The most effective way to mitigate this vulnerability is to apply a vendor patch. If that’s not available, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation. Users are strongly advised to upgrade their devices to a version that is supported by the maintainer to continue receiving security updates and fixes.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview This report discusses a significant vulnerability found in TP-Link TL-WR841N V11 devices. This vulnerability, identified as CVE-2025-53715, could potentially compromise the system or lead to data leakage. As the devices affected are no longer supported by the maintainer, it’s necessary for users to be aware and take corrective measures. Vulnerability Summary CVE ID: CVE-2025-53715 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86704","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t