CVE-2026-84682 TDDPv2 setProductVer Command Injection in Archer AX90
An unauthenticated adjacent attacker can execute arbitrary root commands on Archer AX90 routers via the TDDPv2 service, leading to full device compromise.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-84682?
CVE-2026-84682 is a high-severity command injection vulnerability in TP-Link Systems Inc. Archer AX90 v1, published on 1 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-78
Which versions are affected by CVE-2026-84682?
How do I fix CVE-2026-84682?
No fix has been published for CVE-2026-84682 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-84682 being exploited?
There is no known exploitation of CVE-2026-84682 in the wild and no public exploit code.
Sources
Also known as GHSA-gjhm-8mvw-7r24.