CVE-2026-17251CWE-476

CVE-2026-17251

published August 21, 2026

CVSS
7.1
EPSS
0%
Percentile
39.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
7.1 · NONE
CVSS v4.0
7.1 · 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
EPSS
0.00470 · 39.7th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2026-08-21T22:16Z
References (3)
EPSS history
Timeline
  • 21 AUG 17:16Z
    Unauthenticated Denial of Service via Null Pointer Dereference in HTTP Request Parsing
    cvelistv5