CVE-2026-84682

Unauthenticated root command execution via setProductVer

Published Oct 1, 2026 · Updated Oct 1, 2026

Command injection in the TDDPv2 service on TP-Link Systems Inc. Archer AX90 V1 allows remote attackers on adjacent networks to run root commands. During device boot, the setProductVer handler in /usr/bin/tddp fails to keep attacker-controlled command data separate from operating system command execution; the exact shell invocation has not been published. The attack requires access to the adjacent network but no authentication, and successful execution grants control of the router as root.

CVSS severityUnavailable
Unscored
EPSS probability1.04%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in the TDDPv2 service on TP-Link Systems Inc. Archer AX90 V1 allows remote attackers on adjacent networks to run root commands. During device boot, the setProductVer handler in /usr/bin/tddp fails to keep attacker-controlled command data separate from operating system command execution; the exact shell invocation has not been published. The attack requires access to the adjacent network but no authentication, and successful execution grants control of the router as root.

The record

CVE
CVE-2026-84682
Published
Oct 1, 2026
Updated
Oct 1, 2026
Vendor
TP-Link Systems Inc.
Product
Archer AX90
Classifications
T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.1.4 Build 20260927

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

TP-Link Systems Inc. · Archer AX90version=0 <1.1.4 Build 20260927

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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