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I. Basic Information for CVE-2026-3343
Vulnerability Information

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Vulnerability Title
WatchGuard Firebox Reflected Cross-Site-Scripting (XSS) Vulnerability in Fireware Web UI
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
WatchGuard Fireware OS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WatchGuard Fireware OS是美国WatchGuard公司的一个在 Firebox 上运行的软件。 WatchGuard Fireware OS 12.7至12.11.7版本和2025.1至2026.1.1版本存在安全漏洞,该漏洞源于Fireware OS Web UI存在反射型跨站脚本,可能导致经过身份验证的管理用户在点击特制链接时,在其浏览器环境中执行恶意JavaScript。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
WatchGuardFireware OS 12.7 ~ 12.11.7 -
II. Public POCs for CVE-2026-3343
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III. Intelligence Information for CVE-2026-3343
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