CVE-2026-84682: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in TP-Link Systems Inc. Archer AX90 v1
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.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-84682) involves improper neutralization of special elements in OS commands (CWE-78) in the TDDPv2 service (/usr/bin/tddp) on TP-Link Archer AX90 v1. An unauthenticated attacker on an adjacent network can exploit the setProductVer command handler to execute arbitrary commands as root during device boot, resulting in full device compromise.
Potential Impact
Successful exploitation allows an unauthenticated adjacent-network attacker to execute arbitrary operating system commands with root privileges during device boot, leading to complete compromise of the affected device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-84682: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in TP-Link Systems Inc. Archer AX90 v1
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.
CVSS v4.0
Score 7.7high
Affected software
TP-Link Systems Inc.
Archer AX90 v1
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-84682) involves improper neutralization of special elements in OS commands (CWE-78) in the TDDPv2 service (/usr/bin/tddp) on TP-Link Archer AX90 v1. An unauthenticated attacker on an adjacent network can exploit the setProductVer command handler to execute arbitrary commands as root during device boot, resulting in full device compromise.
Potential Impact
Successful exploitation allows an unauthenticated adjacent-network attacker to execute arbitrary operating system commands with root privileges during device boot, leading to complete compromise of the affected device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TPLink
- Date Reserved
- 2026-09-01T22:24:51.457Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abeae1ca43b0b3b89e80a28
Added to database: 10/01/2026, 19:01:48 UTC
Last enriched: 10/01/2026, 19:16:14 UTC
Last updated: 10/02/2026, 01:08:02 UTC
Views: 9
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