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.
Does this matter?
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.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.61% probability · 85th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- endian/firewall community
- Source
- cve@mitre.org
EPSS 2.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.