CVE-2026-17251
Unauthenticated Denial of Service via Null Pointer Dereference in HTTP Request Parsing
- State
- Published
- Severity
- 7.1 High
- Published
- Aug 21, 2026
- Updated
- Aug 21, 2026
- Reserved
- Jul 24, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | TPLink |
Weaknesses
- CWE-476 NULL pointer dereference
Affected Products
| Product | Versions |
|---|---|
TL-MR6400 v7.0TP-Link Systems Inc. |
|
References
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