CVE-2026-38063: Command Injection
Tenda 5G03 V05.03.02.04 (Version 1.0) is vulnerable to Command injection in the function actionradioonwithiaapn via the ia parameter.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Remove
Remove
Tenda 5G03 V05.03.02.04 (Version 1.0)from your environment.Remove or replace devices running Tenda 5G03 V05.03.02.04 (Version 1.0). Take affected devices offline or replace with non-vulnerable hardware/firmware until a vendor-provided fix is available.
- Configuration
Disable remote management and any configurable service interfaces that accept the 'ia' parameter (or otherwise expose action_radio_on_with_ia_apn) to reduce exposure. If a specific setting to disable the vulnerable functionality exists, disable it.
Tenda 5G03 device management / affected service remote_management / accept_ia_parameter = disabled - Compensating control
Apply network-level restrictions: restrict access to the device to trusted IP addresses via firewall/ACLs, isolate the device on a management VLAN, and block or rate-limit inbound requests that include the 'ia' parameter. Deploy WAF/IDS rules to detect and block command-injection attempts targeting action_radio_on_with_ia_apn.
- Operational
Monitor device logs and network traffic for attempts referencing the 'ia' parameter or action_radio_on_with_ia_apn. Keep affected devices offline or otherwise isolated until a vendor-supplied firmware update is provided and applied.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-38063?
CVE-2026-38063 has a critical severity rating of 9.8 according to CVSS 3.1.
How do I fix CVE-2026-38063?
To fix CVE-2026-38063, users should update to the latest firmware version provided by Tenda.
What type of vulnerability is CVE-2026-38063?
CVE-2026-38063 is a command injection vulnerability affecting Tenda 5G03 routers.
What systems are affected by CVE-2026-38063?
CVE-2026-38063 specifically affects the Tenda 5G03 router running version V05.03.02.04.
What can attackers do with CVE-2026-38063?
Attackers can exploit CVE-2026-38063 to execute arbitrary commands on the affected Tenda device.