CVE-2026-17251

Published Aug 21, 2026

Last updated 3 days ago

CVSS high 7.1

Overview

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.
Source
f23511db-6c3e-4e32-a477-6aa17d310630
NVD status
Received

Risk scores

CVSS 4.0

Type
Secondary
Base score
7.1
Impact score
-
Exploitability score
-
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity
HIGH

Weaknesses

f23511db-6c3e-4e32-a477-6aa17d310630
CWE-476

Social media

Hype score
Not currently trending

  1. 🚨*CVE* CVE-2026-17251 A NULL pointer dereference vulnerability exists in the HTTP request parsing functionality of  TL-MR6400 v7. An unauthenticated remote attacker can trigger the vulnera… https://t.co/l7sfr6jgcH ----- Traducción: CVE-2026-17251 Exi… https://t.co/utmtN

    @infoflowcloud

    21 Aug 2026

    14 Impressions

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References

Sources include official advisories and independent security research.