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Case File

CVE-2021-20034

CRITICAL · CVSS 9.1 EPSS 80.70% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-27 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 80.7% probability of exploitation in the next 30 days. It may be remotely exploitable. Exploitation may require the attacker to be authenticated.

Public Exploit Signal

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

External Security References

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

CVE
CVE-2021-20034
Severity
CRITICAL
CVSS
9.1
EPSS
80.70%

Original NVD Description

An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete an arbitrary file potentially resulting in a reboot to factory default settings.

Related CVEs

Other vulnerabilities affecting the same vendor(s)