EUVD-2026-12488CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
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Description
A weakness has been identified in Tenda AC8 up to 16.03.50.11. This vulnerability affects the function doSystemCmd of the file /goform/SysToolChangePwd of the component HTTP Endpoint. This manipulation of the argument local_2c causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.
Analysis
Remote code execution in Tenda AC8 firmware versions up to 16.03.50.11 results from a stack-based buffer overflow in the HTTP endpoint handling password change requests. An unauthenticated attacker can exploit this vulnerability over the network to execute arbitrary commands with full system privileges. …
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Remediation
Within 24 hours: Inventory all Tenda AC8 devices in your network and isolate affected units from critical systems. Within 7 days: Implement network segmentation to restrict router access and deploy WAF rules blocking HTTP requests to /goform/SysToolChangePwd endpoint. …
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