CVE-2026-4253: Tenda AC8 Web UploadCfg route_set_user_policy_rule os command injection
A security flaw has been discovered in Tenda AC8 16.03.50.11. This affects the function routesetuserpolicyrule of the file /cgi-bin/UploadCfg of the component Web Interface. The manipulation of the argument wans.policy.list1 results in os command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-4253?
CVE-2026-4253 is classified as a critical vulnerability due to the potential for remote command execution.
How do I fix CVE-2026-4253?
To remediate CVE-2026-4253, update the Tenda AC8 firmware to the latest version released by the manufacturer.
What is the impact of CVE-2026-4253?
CVE-2026-4253 allows an attacker to execute arbitrary OS commands on the affected Tenda AC8 device.
Which products are affected by CVE-2026-4253?
CVE-2026-4253 specifically affects the Tenda AC8 router running firmware version 16.03.50.11.
How can CVE-2026-4253 be exploited?
CVE-2026-4253 can be exploited through a crafted request to the route_set_user_policy_rule function in the device's web interface.