CVE-2025-9090

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-74 CWE-77

Affected software

Vendor	Product	Versions
Tenda	AC20	16.03.08.12

References

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

Timeline

Published: Aug 17, 2025
Last modified: Jun 17, 2026
NVD status: Analyzed

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