{"id":"CVE-2021-27201","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-27201","generatedAt":"2026-10-27T20:20:32.589Z","title":"Endian Firewall Community (aka EFW) 3.3.2 allows remote authenticated users to execute arbitrary OS commands via shell metacharacters in a backup comment.","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.","published":"2021-02-15T19:15:13.000Z","lastModified":"2026-06-17T03:44:28.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-78"],"affected":["endian/firewall community"],"epss":{"score":0.02606,"percentile":0.8528,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.61%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/MucahitSaratar/endian_firewall_authenticated_rce","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://sourceforge.net/projects/efw/files/Development/EFW-3.3.2/","tags":["Release Notes","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.endian.com/company/news/endian-community-releases-new-version-332-148/","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/MucahitSaratar/endian_firewall_authenticated_rce","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sourceforge.net/projects/efw/files/Development/EFW-3.3.2/","tags":["Release Notes","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.endian.com/company/news/endian-community-releases-new-version-332-148/","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-27201","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}