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CVE-2026-13375

WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in Autotask Technology Integration Configuration

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (Autotask Technology Integration module) allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-13938. This issue affects Fireware OS 12.4 up to and including 12.12, 12.5 up to and including 12.5.18, and 2025.1 up to and including 2026.2.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M295 and 37 more
CVE-2026-3344

WatchGuard Firebox System Integrity Check Bypass

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.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M295 and 37 more
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.

CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M295 and 35 more
CVE-2025-13940

WatchGuard Firebox Boot Time System Integrity Check Bypass

An Expected Behavior Violation [CWE-440] vulnerability in WatchGuard Fireware OS may allow an attacker to bypass the Fireware OS boot time system integrity check and prevent the Firebox from shutting down in the event of a system integrity check failure. The on-demand system integrity check in the Fireware Web UI will correctly show a failed system integrity check message in the event of a failure.

CVSS 4.0 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M370 and 30 more
CVE-2025-1545

WatchGuard Firebox XPath Injection Vulnerability in Web CGI

An XPath Injection vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to retrieve sensitive information from the Firebox configuration through an exposed authentication or management web interface. This vulnerability only affects Firebox systems that have at least one authentication hotspot configured.

CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M370 and 32 more
CVE-2025-13939

WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in Gateway Wireless Controller

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (Gateway Wireless Controller module) allows Stored XSS.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M370 and 32 more
CVE-2025-13938

WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in Autotask Technology Integration Configuration

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (Autotask Technology Integration module) allows Stored XSS.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M370 and 32 more
CVE-2025-13937

WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in ConnectWise Technology Integration Configuration

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (ConnectWise Technology Integration module) allows Stored XSS.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M370 and 32 more
CVE-2025-13936

WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in Tigerpaw Technology Integration Configuration

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (Tigerpaw Technology Integration module) allows Stored XSS.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M370 and 32 more
CVE-2025-12196

WatchGuard Firebox Authenticated Out of Bounds Write in Management CLI Ping Command

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS's CLI could allow an authenticated privileged user to execute arbitrary code via a specially crafted CLI command.

CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M370 and 32 more
CVE-2025-12195

WatchGuard Firebox Authenticated Out of Bounds Write in Management CLI IPSec Configuration

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS's CLI could allow an authenticated privileged user to execute arbitrary code via specially crafted IPSec configuration CLI commands.

CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M370 and 32 more
CVE-2025-11838

WatchGuard Firebox iked Memory Corruption Vulnerability

A memory corruption vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker to trigger a Denial of Service (DoS) condition in the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M370 and 30 more
CVE-2025-12026

WatchGuard Firebox Authenticated Out of Bounds Write in certd

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS’s certificate request command could allow an authenticated privileged user to execute arbitrary code via specially crafted CLI commands.

CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M370 and 32 more
CVE-2025-9242

WatchGuard Firebox iked Out of Bounds Write Vulnerability

An Out-of-bounds Write vulnerability in the WatchGuard Fireware OS iked process may allow a remote unauthenticated attacker to execute arbitrary code. This vulnerability affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer. If the Firebox was previously configured with the mobile user VPN with IKEv2 or a branch office VPN using IKEv2 to a dynamic gateway peer, and both of those configurations have since been deleted, that Firebox may still be vulnerable if a branch office VPN to a static gateway peer is still configured.

CVSS 4.0 · 9.3 Critical EPSS 92.2% KEV · Listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M295 and 37 more
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 11.12.4_Update1, 12.0 up to and including 12.11.7 and 2025.1 up to and including 2026.1.1.

CVSS 4.0 · 8.6 High EPSS 6.4% KEV · Not listed
Vendors
Watchguard
Products
Firebox M270 Firebox M290 Firebox M295 and 37 more