Vulnerability Description
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.
Related Weaknesses (CWE)
References
- https://www.tp-link.com/en/support/download/tl-mr6400/v7/#Firmware
- https://www.tp-link.com/tw/support/download/tl-mr6400/v7/#Firmware
- https://www.tp-link.com/us/support/faq/5259/
FAQ
What is CVE-2026-17251?
CVE-2026-17251 is a documented vulnerability. 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 craf...
How severe is CVE-2026-17251?
CVSS scoring is not yet available for CVE-2026-17251. Check NVD for updates.
Is there a patch for CVE-2026-17251?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.