---
id: CVE-2026-17252
title: >-
  A

  stack-based out-of-bounds write vulnerability exists in the login request

  handling functionality of the administrative web interface of TP-Link
  TL-MR6400 v7 routers
summary: >-
  A

  stack-based out-of-bounds write vulnerability exists in the login request

  handling functionality of the administrative web interface of TP-Link
  TL-MR6400 v7 routers. An unauthenticated adjacent attacker can trigger the
  vulnerability

  by…
severity: none
cwe:
  - CWE-787
published: '2026-08-21'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T19:10:00.297'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-17252'
references:
  - url: 'https://www.tp-link.com/en/support/download/tl-mr6400/v7/#Firmware'
    label: f23511db-6c3e-4e32-a477-6aa17d310630
  - url: 'https://www.tp-link.com/tw/support/download/tl-mr6400/v7/#Firmware'
    label: f23511db-6c3e-4e32-a477-6aa17d310630
  - url: 'https://www.tp-link.com/us/support/faq/5259/'
    label: f23511db-6c3e-4e32-a477-6aa17d310630
tags:
  - nvd
epss: 0.00268
epssPercentile: 0.17635
ingestedAt: '2026-10-14T19:49:57.562Z'
---

## Overview

A
stack-based out-of-bounds write vulnerability exists in the login request
handling functionality of the administrative web interface of TP-Link TL-MR6400 v7 routers. An unauthenticated adjacent attacker can trigger the vulnerability
by sending a specially crafted malformed HTTP request. 





Successful
exploitation may cause the web service process to crash, resulting in a
denial-of-service condition and temporary loss of access to the router's web
management interface.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.