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Case File

CVE-2021-31757

CRITICAL · CVSS 9.8 EPSS 3.27% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-05-07 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-31757
Severity
CRITICAL
CVSS
9.8
EPSS
3.27%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)