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Case File

CVE-2021-20123

HIGH · CVSS 7.5 EPSS 74.28% CISA KEV · Actively Exploited

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-10-13 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It is listed in CISA's Known Exploited Vulnerabilities catalog, indicating confirmed active exploitation in the wild. Its EPSS score suggests a 74.3% probability of exploitation in the next 30 days. Exploitation may require the attacker to be authenticated.

CISA KEV Details

Status: This CVE is listed in CISA's Known Exploited Vulnerabilities catalog.

Ransomware use: Unknown

Added to KEV: 2024-09-03

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CVE
CVE-2021-20123
Severity
HIGH
CVSS
7.5
EPSS
74.28%

Original NVD Description

A local file inclusion vulnerability exists in Draytek VigorConnect 1.6.0-B3 in the file download functionality of the DownloadFileServlet endpoint. An unauthenticated attacker could leverage this vulnerability to download arbitrary files from the underlying operating system with root privileges.

Related CVEs

Other vulnerabilities affecting the same vendor(s)