CVE-2026-84682NVD

Vulnerability Summary

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.

Severity Level

HIGH(7.7)

Published Date

Oct 1, 2026

Last Modified

Oct 2, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

1.04%Probability

Root Weakness (CWE)

CWE-78: OS Command Injection ↗

The software constructs all or part of an OS command using externally-influenced input, but does not properly neutralize special elements.

CVSS v4.0 Base Metrics — Score 7.7 (HIGH)

Attack VectorAdjacent

Attack ComplexityLow

Attack RequirementsPresent

Privileges RequiredNone

User InteractionNone

Confidentiality (Vulnerable System)High

Integrity (Vulnerable System)High

Availability (Vulnerable System)High

Confidentiality (Subsequent System)Low

Integrity (Subsequent System)Low

Availability (Subsequent System)Low

Affected & Patched Versions

Affected Versions

TP-Link Systems Inc. Archer AX90 v1 < 1.1.4 Build 20260927

Patched Versions

TP-Link Systems Inc. Archer AX90 v1 1.1.4 Build 20260927

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