8.7

CVE-2026-11834

Unauthenticated Command Injection via DHCP Option Handling in Multiple TP-Link Routers

A command
injection vulnerability has been identified in the DHCP option processing logic
in multiple TP-Link router models, due to insufficient validation of externally
supplied DHCP option data. An adjacent attacker may exploit this
vulnerability by supplying crafted DHCP responses, potentially resulting in unauthorized
command execution during device initialization or provisioning workflows. This
typically occurs when the device is in a factory-default or unconfigured state.





Successful
exploitation may allow an adjacent, unauthenticated attacker to execute
arbitrary commands with elevated privileges, potentially leading to full
compromise of the affected device and unauthorized administrative control.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerTP-Link Systems Inc.
≫
Produkt Archer MR200 v07
Default Statusunaffected
Version 0
Version < 1.3.0 Build 250605
Status affected
HerstellerTP-Link Systems Inc.
≫
Produkt Archer MR200 v8
Default Statusunaffected
Version 0
Version < 1.5.0 Build 260605
Status affected
HerstellerTP Link Systems Inc.
≫
Produkt Archer MR402 v1
Default Statusunaffected
Version 0
Version < 1.5.0 Build 260605
Status affected
HerstellerTP-Link Systems Inc.
≫
Produkt Archer VR2100 v1
Default Statusunaffected
Version 0
Version < EU_V1_260330
Status affected
HerstellerTP-Link Systems Inc.
≫
Produkt Archer C20 v5
Default Statusunaffected
Version 0
Version < EU_V5_260317
Status affected
Version 0
Version < US_V5_260419
Status affected
HerstellerTP-Link Systems Inc.
≫
Produkt Archer C20 v6
Default Statusunaffected
Version 0
Version < V6_260608
Status affected
HerstellerTP-Link Systems Inc.
≫
Produkt TL-MR6400 v7
Default Statusunaffected
Version 0
Version < 1.7.0 Build 260413
Status affected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.41% 0.327
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
f23511db-6c3e-4e32-a477-6aa17d310630 8.7 0 0
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

https://www.tp-link.com/en/support/download/archer-c20/
https://www.tp-link.com/en/support/download/archer-mr402/#Firmware
https://www.tp-link.com/en/support/download/archer-mr200/#Firmware
https://www.tp-link.com/en/support/download/tl-mr6400/v7/#Firmware
https://www.tp-link.com/en/support/download/archer-vr2100/#Firmware
https://www.tp-link.com/us/support/download/archer-c20/
https://www.tp-link.com/us/support/faq/5141/
https://mattg.systems/posts/cve-2026-11834/