CVE-2026-84682

TDDPv2 setProductVer Command Injection in Archer AX90

HIGH
7.7
CVSS Score
Published: October 1, 2026 at 06:48 PM UTC
Updated: October 23, 2026 at 05:17 PM UTC
1 product affected across 1 vendorArcher AX90

Using Archer AX90 v1 by TP-Link Systems Inc.?

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Severity
HIGH7.7
Exploit prediction
EPSS 1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0
Affected range stops below 1.1.4 Build 20260927, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.7HIGHTPLink
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-78

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