CVE-2021-27201
HIGHCVSS 8.8/10EPSS 2.61%
Last modified
CVE-2021-27201 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Endian Firewall Community (aka EFW) 3.3.2 allows remote authenticated users to execute arbitrary OS commands via shell metacharacters in a backup comment.. EPSS estimates a 2.61% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Endian | Firewall Community | 3.3.2 |
References
- https://github.com/MucahitSaratar/endian_firewall_authenticated_rceExploit, Third Party Advisory
- https://sourceforge.net/projects/efw/files/Development/EFW-3.3.2/Release Notes, Third Party Advisory
- https://www.endian.com/company/news/endian-community-releases-new-version-332-148/Release Notes, Vendor Advisory
- https://github.com/MucahitSaratar/endian_firewall_authenticated_rceExploit, Third Party Advisory
- https://sourceforge.net/projects/efw/files/Development/EFW-3.3.2/Release Notes, Third Party Advisory
- https://www.endian.com/company/news/endian-community-releases-new-version-332-148/Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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 score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.61% probability of exploitation in the next 30 days.
How do I fix CVE-2021-27201?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-27201?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST