CVE-2021-27201

CVE-2021-27201 is a high-severity vulnerability in Endian Firewall Community with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

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.

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.
How severe is CVE-2021-27201?
CVE-2021-27201 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-27201 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27201?
CVE-2021-27201 affects Endian Firewall Community. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27201?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-27201 published?
CVE-2021-27201 was published on 2021-02-15 and last updated on 2026-06-17.

References

Affected products (1)

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