CVE-2026-34809

MEDIUM 5.4CVE-2026-34809 · Published 02/04/2026 · updated 24/07/2026

In short

CVE-2026-34809 is a MEDIUM (CVSS 5.4) vulnerability affecting firewall community (endian).
Chance of exploitation in the next 30 days (EPSS): 0.14%, higher than 3.6% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
firewall community endian	`≤ 3.3.25`	No fix yet

Description

Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the remark parameter to /cgi-bin/zonefw.cgi. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page.

References

help.endian.com/hc/en-us/sections/360004371358-Community · Release Notes
vulncheck.com/advisories/endian-firewall-cgi-bin-zonefw-cgi-remark-stored-cross-site-scripting · Third Party Advisory

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Package

Affected versions

Patched versions

firewall community

endian

≤ 3.3.25

No fix yet

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