CVE-2026-34790

moderate-risk
Published 2026-04-02

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.

Do I need to act?

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0.16% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.1/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Endian

References (2)

Release Notes https://help.endian.com/hc/en-us/sections/360004371358-Community
Third Party Advisory https://www.vulncheck.com/advisories/endian-firewall-cgi-bin-backup-cgi-remove-a...
31
/ 100
moderate-risk
Severity 25/34 · High
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal