CVE-2021-31757

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setVLAN allows attackers to execute arbitrary code on the system via a crafted post request.

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-787

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_4Exploit, Third Party Advisory
https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_4Exploit, Third Party Advisory

Timeline

Published: May 7, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

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