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CVE-2026-8619

Unauthenticated Denial-of-Service Vulnerability in HTTP Service in TP-Link TL-MR100, TL-MR150, TL-MR6400 and Archer MR600

An unauthenticated denial-of-service vulnerability was identified in TP-Link TL-MR100 v3.2, TL-MR150 v3.2, TL-MR6400 v8.0 and Archer MR600 v2, due to improper handling of exceptional request conditions that may lead to a NULL pointer dereference.  A remote attacker on an adjacent network can send a specially crated HTTP request to trigger a crash of the HTTP service process. Successful exploitation may cause the HTTP service to crash, making the web management interface and HTTP-dependent functionality temporarily unavailable.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Tp-link
Products
Archer Mr600 Archer Mr600 Firmware Tl-mr100 and 5 more
CVE-2026-3841

Command Injection Vulnerability in Telnet CLI on TP-Link TL-MR6400

A command injection vulnerability has been identified in the Telnet command-line interface (CLI) of TP-Link TL-MR6400 v5.3. This issue is caused by insufficient sanitization of data processed during specific CLI operations. An authenticated attacker with elevated privileges may be able to execute arbitrary system commands. Successful exploitation may lead to full device compromise, including potential loss of confidentiality, integrity, and availability.

CVSS 4.0 · 8.5 High EPSS 1.9% KEV · Not listed
Vendors
Tp-link
Products
Tl-mr6400 Tl-mr6400 Firmware