CVE-2026-34797

| EUVD-2026-18276 HIGH
8.7
CVSS 4.0
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CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Analysis Generated
Apr 02, 2026 - 15:22 vuln.today
EUVD ID Assigned
Apr 02, 2026 - 15:22 euvd
EUVD-2026-18276
CVE Published
Apr 02, 2026 - 15:16 nvd
HIGH 8.7

Description

Endian Firewall version 3.3.25 and prior allow authenticated users to execute arbitrary OS commands via the DATE parameter to /cgi-bin/logs_smtp.cgi. The DATE parameter value is used to construct a file path that is passed to a Perl open() call, which allows command injection due to an incomplete regular expression validation.

Analysis

Remote command execution in Endian Firewall Community Edition 3.3.25 and earlier allows authenticated users to inject arbitrary OS commands through the DATE parameter in /cgi-bin/logs_smtp.cgi. The vulnerability stems from incomplete regular expression validation enabling Perl open() injection. …

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Remediation

Within 24 hours: Inventory all Endian Firewall Community Edition deployments and document version numbers; restrict administrative access to the /cgi-bin/logs_smtp.cgi endpoint to trusted networks only via firewall rules. Within 7 days: Audit administrative user accounts and authentication logs for suspicious activity; implement network segmentation to limit lateral movement if compromise occurs. …

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Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: +0.2
CVSS: +44
POC: 0

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CVE-2026-34797 vulnerability details – vuln.today

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