TI-2021-08747 Aliases CVE-2021-27201 GHSA-v5rr-334g-rqm6

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

MEDIUM 43CWE-78Published 2021-02-15 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.

Summary

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

Why it matters now

EPSS 0.02606 85th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:endian:firewall_community:3.3.2:::::::*	3.3.2	Vulnerable	Endian

cpe:2.3:a:endian:firewall_community:3.3.2:*:*:*:*:*:*:* Versions 3.3.2 Vulnerable ·Endian

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-27201
2026-10-03 Alias added: GHSA-v5rr-334g-rqm6

References

Exploit 1

https://github.com/MucahitSaratar/endian_firewall_authenticated_rce

Advisory 2

TI-2026-27040 Endian Firewall /cgi-bin/logs_openvpn.cgi DATE Perl Command Injection CVSS 4.0HIGH 8.7
TI-2026-27039 Endian Firewall /cgi-bin/logs_log.cgi DATE Perl Command Injection CVSS 4.0HIGH 8.7
TI-2026-27041 Endian Firewall /cgi-bin/logs_smtp.cgi DATE Perl Command Injection CVSS 4.0HIGH 8.7
TI-2026-27038 Endian Firewall /cgi-bin/logs_ids.cgi DATE Perl Command Injection CVSS 4.0HIGH 8.7
TI-2026-27037 Endian Firewall /cgi-bin/logs_firewall.cgi DATE Perl Command Injection CVSS 4.0HIGH 8.7
TI-2026-27036 Endian Firewall /cgi-bin/logs_clamav.cgi DATE Perl Command Injection CVSS 4.0HIGH 8.7

See all 34 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences