CVE-2025-9090

A vulnerability was identified in Tenda AC20 16.03.08.12. Affected is the function websFormDefine of the file /goform/telnet of the component Telnet Service. The manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

• CWE-74
• CWE-77

• https://github.com/ZZ2266/.github.io/blob/main/AC20/telnet/readme.mdExploit, Third Party Advisory
• https://github.com/ZZ2266/.github.io/blob/main/AC20/telnet/readme.md#poc-exploit-stepsExploit, Third Party Advisory
• https://vuldb.com/?ctiid.320358Permissions Required, VDB Entry
• https://vuldb.com/?id.320358Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.632232Third Party Advisory, VDB Entry
• https://www.tenda.com.cn/Product

Published

Aug 17, 2025

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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