CVE-2026-84682
TDDPv2 setProductVer Command Injection in Archer AX90
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.
INFO
Published Date :
Oct. 1, 2026, 7:17 p.m.
Last Modified :
Oct. 1, 2026, 8:36 p.m.
Remotely Exploit :
No
Source :
f23511db-6c3e-4e32-a477-6aa17d310630
Affected Products
The following products are affected by CVE-2026-84682
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | HIGH | f23511db-6c3e-4e32-a477-6aa17d310630 | ||||
| CVSS 4.0 | HIGH | f23511db-6c3e-4e32-a477-6aa17d310630 |
Solution
- Update the TDDPv2 service to the latest vendor-provided version.
- Review device boot processes for unauthorized changes.
- Monitor system logs for suspicious command execution.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-84682.
| URL | Resource |
|---|---|
| https://www.tp-link.com/en/support/download/archer-ax90/v1/#Firmware | |
| https://www.tp-link.com/us/support/download/archer-ax90/v1/#Firmware | |
| https://www.tp-link.com/us/support/faq/5323/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-84682 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-84682
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-84682 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-84682 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by f23511db-6c3e-4e32-a477-6aa17d310630
Oct. 01, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-78 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/84xxx/CVE-2026-84682.json">CVE-2026-84682</a> Added Reference https://www.tp-link.com/en/support/download/archer-ax90/v1/#Firmware Added Reference https://www.tp-link.com/us/support/download/archer-ax90/v1/#Firmware Added Reference https://www.tp-link.com/us/support/faq/5323/ -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 01, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-84682', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-01T18:58:29.069985Z'}