HIGH

CVE-2021-27201

CVSS v3

8.8

HIGH

EPSS Score

2.6 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2021-27201 yet.

Full record on NVD

Description

Endian Firewall Community (aka EFW) 3.3.2 allows remote authenticated users to execute arbitrary OS commands via shell metacharacters in a backup comment.

Technical details

Published: 2021-02-15

Frequently asked questions

What is CVE-2021-27201?

Endian Firewall Community (aka EFW) 3.3.2 allows remote authenticated users to execute arbitrary OS commands via shell metacharacters in a backup comment.

Is CVE-2021-27201 actively exploited?

Active exploitation of CVE-2021-27201 has not been confirmed. Its EPSS score was 2.6% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-27201?

CVE-2021-27201 has a CVSS v3 base score of 8.8 (HIGH severity).

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