CVE-2026-84682: TP-Link Archer AX90 command injection in TDDPv2

CVE-2026-84682 · Severity: info · Published 2026-10-01

The Archer AX90 V1 Wi-Fi router contains a command injection vulnerability in its TDDPv2 service that allows attackers on the local network to execute arbitrary commands as root without authentication. An attacker could exploit this during device boot to gain complete control of the router, potentially compromising all connected devices and network traffic.

Vendors: TP-Link.

Quick answers

Is CVE-2026-84682 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-84682 being exploited in the wild.
How severe is CVE-2026-84682?
Informational severity, published 1 October 2026.
Which products and versions are affected?
TP-Link Archer AX90 V1.
Is there a fix for CVE-2026-84682?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-84682 attacked?
It is attacked from the adjacent network, in a network appliance.
Am I affected by CVE-2026-84682?
Check whether you run TP-Link Archer AX90 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The setProductVer command handler in /usr/bin/tddp fails to properly sanitize input, allowing OS command injection. An unauthenticated adjacent-network attacker can exploit this during device boot to execute arbitrary commands with root privileges. Successful exploitation grants complete device compromise.

Affected products

  • TP-Link Archer AX90 V1

Timeline

  • 2026-10-01: disclosed

References

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