CVE-2026-3343 WatchGuard Firebox Reflected Cross-Site-Scripting (XSS) Vulnerability in Fireware Web UI

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...

CVE-2026-3343 WatchGuard Firebox Reflected Cross-Site-Scripting (XSS) Vulnerability in Fireware Web UI

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...

CVE-2026-3343

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...

EUVD-2026-9289

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...

CVE-2026-3342 WatchGuard Firebox Out of Bounds Write Vulnerability

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an authenticated privileged administrator to execute arbitrary code with root permissions via an exposed management interface. This vulnerability affects Fireware OS 11.9 up to and including 11.12.4Update1, 12.0 up to and...

CVE-2026-3342

Technical details about CVE-2026-3342 are not provided in the supplied documents. Monitor for updates from WatchGuard advisory; no public details on affected firmware behavior, exploit methods, or fixes are disclosed here.

CVE-2026-3342 WatchGuard Firebox Out of Bounds Write Vulnerability

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an authenticated privileged administrator to execute arbitrary code with root permissions via an exposed management interface. This vulnerability affects Fireware OS 11.9 up to and including 11.12.4Update1, 12.0 up to and...

CVE-2026-3342

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an authenticated privileged administrator to execute arbitrary code with root permissions via an exposed management interface. This vulnerability affects Fireware OS 11.9 up to and including 11.12.4Update1, 12.0 up to and...

EUVD-2026-9288

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an authenticated privileged administrator to execute arbitrary code with root permissions via an exposed management interface. This vulnerability affects Fireware OS 11.9 up to and including 11.12.4Update1, 12.0 up to and...

PT-2026-22732

Name of the Vulnerable Software and Affected Versions WatchGuard Fireware OS versions 11.9 through 11.12.4 Update1 WatchGuard Fireware OS versions 12.0 through 12.11.7 WatchGuard Fireware OS versions 2025.1 through 2026.1.1 Description An Out-of-bounds Write vulnerability exists in WatchGuard...

WatchGuard Fireware OS 安全漏洞

WatchGuard Fireware OS is a software developed by the American company WatchGuard, running on Firebox devices. Vulnerabilities exist in versions 12.0 to 12.11.7, 12.5.9 to 12.5.16, and 2025.1 to 2026.1.1 of WatchGuard Fireware OS. These vulnerabilities stem from a potential flaw that allows...

CVE-2026-3344: Expected Behavior Violation

A vulnerability in WatchGuard Fireware OS may allow an attacker to bypass the Fireware OS filesystem integrity check and maintain limited persistence via a maliciously-crafted firmware update package...

CVE-2026-3342: Out-of-bounds Write

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an authenticated privileged administrator to execute arbitrary code with root permissions via an exposed management interface. This vulnerability affects Fireware OS 11.9 up to and including 11.12.4Update1, 12.0 up to and...

CVE-2026-3343: Improper Neutralization of Input During Web Page Generation

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...

WatchGuard Fireware OS 安全漏洞

WatchGuard Fireware OS is a software operated by the American company WatchGuard, running on Firebox devices. Versions 12.7 to 12.11.7 and 2025.1 to 2026.1.1 of WatchGuard Fireware OS contain security vulnerabilities. These vulnerabilities stem from reflective cross-site scripting in the Fireware...

WatchGuard Fireware OS 安全漏洞

WatchGuard Fireware OS is a software operated by the American company WatchGuard, running on Firebox devices. Vulnerabilities exist in versions 11.9 to 11.12.4Update1, 12.0 to 12.11.7, and 2025.1 to 2026.1.1 of WatchGuard Fireware OS. These vulnerabilities stem from out-of-bound writing, allowing...

PT-2026-22733

Name of the Vulnerable Software and Affected Versions Fireware OS versions 12.7 through 12.11.7 Fireware OS versions 2025.1 through 2026.1.1 Description A reflected cross-site scripting XSS issue exists in the Fireware OS Web UI. This allows for the execution of malicious JavaScript within the...

PT-2026-22734

Name of the Vulnerable Software and Affected Versions WatchGuard Fireware OS versions 12.0 through 12.11.7 WatchGuard Fireware OS versions 12.5.9 through 12.5.16 WatchGuard Fireware OS versions 2025.1 through 2026.1.1 Description A flaw in WatchGuard Fireware OS could allow an attacker to...

Exploit for Out-of-bounds Write in Watchguard Fireware

CVE-2025-14733 — WatchGuard Firebox iked Out-of-Bounds Write A...

CVE-2026-1498

An LDAP Injection vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to retrieve sensitive information from a connected LDAP authentication server through an exposed authentication or management web interface. This vulnerability may also allow a remote attacker to...