CVE-2026-34790

EUVD-2026-18262
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.
Path Traversal
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
7.1 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 56%
Affected Products (NVD)
VendorProductVersion
endianfirewall_community
𝑥
≤ 3.3.25
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
endianfirewall
3.3.25
CNA
Common Weakness Enumeration
References
https://help.endian.com/hc/en-us/sections/360004371358-Community
https://www.vulncheck.com/advisories/endian-firewall-cgi-bin-backup-cgi-remove-archive-directory-traversal