CVE-2026-84682
Received Received - Intake

Command Injection in TP-Link Archer AX90

Publication date: 2026-10-01

Last updated on: 2026-10-01

Assigner: TPLink

Description
A command injection vulnerability exists in the TDDPv2 service (/usr/bin/tddp) on Archer AX90 V1. An unauthenticated adjacent-network attacker can exploit the setProductVer command handler to execute arbitrary operating system commands as root during device boot.  Successful exploitation may result in complete device compromise through arbitrary command execution with root privileges.

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Meta Information

Published
2026-10-01
Last Modified
2026-10-01
Generated
2026-10-01
AI Q&A
2026-10-01
EPSS Evaluated
N/A
NVD
CVE-2026-84682
EUVD
EUVD-2026-91040

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-78 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.

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Executive Summary

This is a command injection vulnerability in TP-Link's Archer AX90 V1 router. It exists in the TDDPv2 service, specifically in the setProductVer command handler. An unauthenticated attacker on the same network can exploit this during device boot to run arbitrary operating system commands with root privileges.

Impact Analysis

Exploitation may lead to complete device compromise. An attacker could gain full control of your router with root privileges, potentially allowing them to monitor network traffic, steal data, or use your device in malicious activities.

Mitigation Strategies

Update the firmware of your TP-Link Archer AX90 V1 router to version 1.1.4 Build 20260927 or later to patch the vulnerability.

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