HIGH CISA KEV

CVE-2021-20123

CVSS v3

7.5

HIGH

EPSS Score

94.0%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

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.

CISA Known Exploited Vulnerability

Date Added
9/3/2024
Patch Due Date
9/24/2024
Ransomware Use
Unknown

Technical details

Published
10/13/2021

Frequently asked questions

What is CVE-2021-20123?

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.

Is CVE-2021-20123 actively exploited?

Yes. CVE-2021-20123 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 9/24/2024.

What is the CVSS score for CVE-2021-20123?

CVE-2021-20123 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2021-20123 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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