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

No affected versions have been published.

Timeline

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

Related CVEs from 2021

CVE-2021-317589.8An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setporCVE-2021-31768.0The chat window of the Mitel BusinessCTI Enterprise (MBC-E) Client for Windows before 6.4.15 and 7.x before 7.1.2 could allow an attacker toCVE-2021-317608.8Webmin 1.973 is affected by Cross Site Request Forgery (CSRF) to achieve Remote Command Execution (RCE) through Webmin's running process feaCVE-2021-317619.6Webmin 1.973 is affected by reflected Cross Site Scripting (XSS) to achieve Remote Command Execution through Webmin's running process featurCVE-2021-317628.8Webmin 1.973 is affected by Cross Site Request Forgery (CSRF) to create a privileged user through Webmin's add users feature, and then get aCVE-2021-317698.8MyQ Server in MyQ X Smart before 8.2 allows remote code execution by unprivileged users because administrative session data can be read in tCVE-2021-31779.8Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote code execution in certain PythCVE-2021-317767.8Aviatrix VPN Client before 2.14.14 on Windows has an unquoted search path that enables local privilege escalation to the SYSTEM user, if theCVE-2021-317774.9The dce (aka Dynamic Content Element) extension 2.2.0 through 2.6.x before 2.6.2, and 2.7.x before 2.7.1, for TYPO3 allows SQL Injection viaCVE-2021-317785.4The media2click (aka 2 Clicks for External Media) extension 1.x before 1.3.3 for TYPO3 allows XSS by a backend user account.CVE-2021-317796.4The yoast_seo (aka Yoast SEO) extension before 7.2.1 for TYPO3 allows SSRF via a backend user account.CVE-2021-31786.5fs/nfsd/nfs3xdr.c in the Linux kernel through 5.10.8, when there is an NFS export of a subdirectory of a filesystem, allows remote attackers
CVE-2021-31757: Critical severity, CVSS 9.8 | Vulnix