CVE-2026-11553

Tenda · HG7, HG9, and HG10

A security vulnerability has been identified in Tenda HG7, HG9, and HG10 series gateways, potentially impacting network security.

Executive summary

A high-severity vulnerability affecting multiple Tenda HG-series gateways presents a critical risk to internal network security and device control.

Vulnerability

This vulnerability resides within the firmware of the specified Tenda gateways, potentially allowing for unauthorized exploitation. The flaw requires immediate investigation to determine the exact attack vector and required authentication levels.

Business impact

The potential for unauthorized device control poses a risk to all connected network resources, potentially leading to data breaches or unauthorized network access. With a CVSS score of 8.8, the vulnerability is considered critical and requires prompt mitigation to prevent potential exploitation.

Remediation

Immediate Action: Immediately review the Tenda support portal for updated firmware versions for the HG7, HG9, and HG10 models and apply patches as they are released.

Proactive Monitoring: Maintain vigilance by reviewing network traffic logs for suspicious outbound connections originating from the gateway devices.

Compensating Controls: If patching is delayed, restrict administrative access to the devices and ensure they are not exposed to the public internet.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Security teams should treat this vulnerability with high priority. We recommend consistent monitoring of the Tenda vendor site for security updates and implementing restrictive access policies to minimize the attack surface until the vulnerability is fully remediated.