CVE-2026-38709
Received Received - Intake

Command Injection in Tenda Router Firmware

Publication date: 2026-07-30

Last updated on: 2026-07-31

Assigner: MITRE

Description
TR1200 v2.4.15, TR3000 v2.4.21, WR300 v2.4.25, WR1200 v2.4.23, WR1300 v2.4.22, WR1500 v2.3.10, WR3000 v2.4.19, WR3600 v2.3.16, and WR6500 v2.3.15 were discovered to contain a command injection vulnerability in the net.set_wan interface. This vulnerability allows attackers to execute arbitrary commands as root via a crafted input.

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Meta Information

Published
2026-07-30
Last Modified
2026-07-31
Generated
2026-07-31
AI Q&A
2026-07-31
EPSS Evaluated
N/A
NVD
CVE-2026-38709
EUVD
EUVD-2026-51326

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

Attack-Flow Graph

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Executive Summary

This vulnerability is a command injection flaw in multiple router models (TR1200, TR3000, WR300, WR1200, WR1300, WR1500, WR3000, WR3600, WR6500). Attackers can exploit it by sending crafted input to the net.set_wan interface, allowing them to run arbitrary commands with root privileges.

Detection Guidance

To detect this vulnerability, check if any of the affected devices (TR1200 v2.4.15, TR3000 v2.4.21, WR300 v2.4.25, WR1200 v2.4.23, WR1300 v2.4.22, WR1500 v2.3.10, WR3000 v2.4.19, WR3600 v2.3.16, WR6500 v2.3.15) are running on your network. Inspect the net.set_wan interface for unusual command execution patterns or unauthorized root access.

Impact Analysis

If exploited, attackers could gain full control over the affected router, potentially intercepting network traffic, installing malware, or using the device as part of a botnet. This could lead to data theft, unauthorized access to connected devices, or disruption of network services.

Compliance Impact

This vulnerability allows attackers to execute arbitrary commands as root via crafted input, which could lead to unauthorized access, data breaches, or system compromise. Such risks may violate compliance requirements under GDPR (data protection), HIPAA (health data security), and other regulations by exposing sensitive information or failing to maintain secure systems.

Mitigation Strategies

Immediately update all affected devices to the latest patched versions. If patches are unavailable, isolate the devices from critical network segments and restrict access to the net.set_wan interface. Monitor for suspicious activity and disable unnecessary services.

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