CVE-2026-3343

MEDIUM
2026-03-03 5d1c2695-1a31-4499-88ae-e847036fd7e3
6.1
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:05 vuln.today
CVE Published
Mar 03, 2026 - 14:15 nvd
MEDIUM 6.1

Tags

XSS Fireware

Description

A reflected cross-site scripting (XSS) vulnerability in the Fireware OS Web UI enabled execution of malicious JavaScript in the context of an authenticated management user's browser when they click on a specially crafted link. This vulnerability affects Fireware OS 12.7 up to and including 12.11.7 and 2025.1 up to and including 2026.1.1.

Analysis

Fireware OS Web UI contains a reflected XSS vulnerability that allows attackers to execute arbitrary JavaScript in authenticated administrators' browsers through crafted links, affecting versions 12.7-12.11.7 and 2025.1-2026.1.1. An attacker can leverage this to perform administrative actions or steal session credentials from targeted management users who click malicious links. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

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Priority Score

31
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +30
POC: 0

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CVE-2026-3343 vulnerability details – vuln.today
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