What is CVE-2026-34790?

CVE-2026-34790 is a high-severity vulnerability in Endian Firewall, classified under Path Traversal. CVSS score: 7.1/10. Published 2026-04-02.

How severe is CVE-2026-34790?

High severity. CVSS v3 base score is 7.1 out of 10.

Path Traversal in Endian Firewall

CVE-2026-34790

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.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.006 (46.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.

Affected products

Endian Firewall — versions 0, 3.3.25
Endian Firewall_community

Weakness classification (CWE)

CWE-22 — Path Traversal

References

disclosure@vulncheck.com (release-notes, Release Notes)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-34790?: CVE-2026-34790 is a high-severity vulnerability in Endian Firewall, classified under Path Traversal. CVSS score: 7.1/10. Published 2026-04-02.
How severe is CVE-2026-34790?: High severity. CVSS v3 base score is 7.1 out of 10.