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CVE-2021-27201

Endian Firewall Community (aka EFW) 3.3.2 allows remote authenticated users to execute arbitrary...

8.8 High

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

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.61%Up 1.6 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 8.8

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

Record
CVE-2021-27201
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
6.5 MediumAV:N/AC:L/Au:S/C:P/I:P/A:P
Weakness
CWE-78
Updated
2026-11-02
CVE List No score

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

Record
CVE-2021-27201
Updated
2026-11-02
EUVDEUVD-2021-13966 No score

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

Record
EUVD-2021-13966
Updated
2026-11-03
GitHub AdvisoriesGHSA-v5rr-334g-rqm6 8.8

Endian Firewall Community (aka EFW) 3.3.2 allows remote authenticated users to execute arbitrary...

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

Record
GHSA-v5rr-334g-rqm6
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-88
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-27201 is a high vulnerability (CVSS 8.8) in Endian Firewall Community, published February 15, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.61%, the 85th percentile. No source names a fixed version.

References

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