Vulnerability intelligence

CVE-2026-17251

TP-Link Systems Inc. TL-MR6400 v7.0 CWE-476

A NULL pointer dereference vulnerability exists in the HTTP request parsing functionality of TL-MR6400 v7. An unauthenticated remote attacker can trigger the vulnerability by sending a specially crafted HTTP request containing a malformed session cookie header. Successful exploitation may cause the HTTP service process to crash, resulting in a denial-of-service condition and temporary loss of management or CGI functionality until service recovery.

CVSS Score

7.1

High

EPSS — Exploit Probability

0.5%

Riskier than 39% of all CVEs · checked 2026-10-08

Exploitation

Not in CISA KEV

KEV does not include every exploited vulnerability

Remediation

Patch available

Vendor fix published