CVE-2026-34790

HIGH 7.1

Endian Firewall /cgi-bin/backup.cgi remove ARCHIVE Directory Traversal

CVSS Score

7.1

EPSS Score

0.3%

EPSS Percentile

57th

Endian Firewall version 3.3.25 and prior allow authenticated users to delete arbitrary files via directory traversal in the remove ARCHIVE parameter to /cgi-bin/backup.cgi. The remove ARCHIVE parameter value is used to construct a file path without sanitization of directory traversal sequences, which is then passed to an unlink() call.

CWE	CWE-22
Vendor	endian
Product	endian firewall
Published	Apr 2, 2026
Last Updated	Apr 3, 2026

Stay Ahead of the Next One

Get instant alerts for endian endian firewall

Be the first to know when new high vulnerabilities affecting endian endian firewall are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

Low

Affected Versions

Endian / Endian Firewall

3.3.25

References

NVD ↗ CVE.org ↗ EPSS Data ↗

help.endian.com: https://help.endian.com/hc/en-us/sections/360004371358-Community vulncheck.com: https://www.vulncheck.com/advisories/endian-firewall-cgi-bin-backup-cgi-remove-archive-directory-traversal

Credits

Alex Williams from Pellera Technologies VulnCheck