CVE-2026-5547: Command Injection in Tenda AC10

The Command Injection vulnerability in Tenda AC10 allows an attacker to inject and execute arbitrary OS commands on the router. Successful exploitation could grant the attacker complete control over the device, enabling them to modify configurations, steal sensitive data (such as user credentials and network traffic logs), and potentially pivot to other devices on the network. The remote nature of the vulnerability significantly broadens the attack surface, as it can be exploited from anywhere with network access to the router. This vulnerability shares similarities with other command injection flaws where improper input validation allows attackers to bypass security controls and execute malicious code.

1. Reserved2026-04-04
2. Published2026-04-05
3. Modified2026-04-06
4. EPSS updated2026-04-12

The primary mitigation for CVE-2026-5547 is to upgrade the Tenda AC10 router to a firmware version that addresses the vulnerability. Since a fixed firmware version is not specified in the provided data, it's crucial to monitor Tenda's official website for updates. As a temporary workaround, consider implementing strict firewall rules to restrict access to the /bin/httpd endpoint from untrusted sources. Additionally, review and harden router configurations, disabling unnecessary services and features. Monitor router logs for suspicious activity, particularly attempts to access or manipulate the /bin/httpd file. If a rollback is necessary due to a problematic upgrade, revert to a previous, known-stable firmware version.