WatchGuard Vulnerabilities and Affected Products

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Vulnerabilities associated with Fireware OS.

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Showing 25 vulnerabilities on this page for Fireware OS

Signals CISA KEV Ransomware Nuclei
VulnerabilityTitle and contextCVSSEPSSPoCsSignals

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

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.

CWE-787Jul 2, 2026
CVSS8.6v4.0EPSS0.607%PoCs0SignalsSTIX

WatchGuard Firebox networkd Out of Bounds Write Vulnerability

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS networkd process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.

CWE-787Jul 2, 2026
CVSS8.6v4.0EPSS0.545%PoCs0SignalsSTIX

WatchGuard Firebox Arbitrary File Write via Path Traversal in Management Web UI

A path traversal vulnerability in the WatchGuard Fireware OS Management Web UI allows a privileged authenticated attacker to write arbitrary files on the Firebox's filesystem.

CWE-22Jul 2, 2026
CVSS8.6v4.0EPSS0.621%PoCs0SignalsSTIX

WatchGuard Firebox admd Out of Bounds Write Vulnerability

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker on the same local network segment to execute arbitrary code. This vulnerability affects Fireware OS 11.0 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2.

CWE-120CWE-787Jul 2, 2026
CVSS7.7v4.0EPSS0.206%PoCs0SignalsSTIX

WatchGuard Firebox Hardcoded Fallback Encryption Key in Access Portal Resource Credential Database

In exception circumstances, WatchGuard Fireware OS on a FireCluster may use a hard-coded encryption key to encrypt saved credentials for Access Portal resources. This vulnerability does not affect devices that do not support the Access Portal feature or standalone Fireboxes not deployed in a FireCluster.

CWE-798Jul 2, 2026
CVSS5.9v4.0EPSS0.148%PoCs0SignalsSTIX

Null Pointer Dereference in WatchGuard Fireware OS iked Process

A null pointer dereference vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to create a denial-of-service (DoS) condition by sending specially crafted IKEv2 messages. This vulnerability affects both the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer. This vulnerability affects Fireware OS 11.10.2 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.…

CWE-476Jul 2, 2026
CVSS8.7v4.0EPSS0.514%PoCs0SignalsSTIX

WatchGuard Firebox Race Condition and Use-After-Free in Mobile VPN with IKEv2 LDAP Authentication

WatchGuard Fireware OS contains a race condition leading to a use-after-free vulnerability in LDAP authentication for the Mobile User VPN with IKEv2. A remote unauthenticated attacker could exploit this vulnerability to execute arbitrary code in the context of the iked process on Fireboxes that have a Mobile VPN with IKEv2 configured to use an external LDAP authentication server.

CWE-416Jul 2, 2026
CVSS9.2v4.0EPSS0.924%PoCs0SignalsSTIX

WatchGuard Firebox Firmware Image Validation Bypass in WatchGuard Fireware OS

WatchGuard Fireware OS contains a firmware validation bypass when processing a backup image via the backup/restore feature. An authenticated administrator can exploit this vulnerability to install a tampered firmware image.

CWE-347Jul 2, 2026
CVSS8.6v4.0EPSS0.241%PoCs0SignalsSTIX

WatchGuard Firebox wgagent Out of Bounds Write Vulnerability

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS wgagent process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.

CWE-787Jul 2, 2026
CVSS8.6v4.0EPSS0.597%PoCs0SignalsSTIX

WatchGuard Firebox ikestubd Out of Bounds Write Vulnerability

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS ikestubd process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.

CWE-787Jul 2, 2026
CVSS8.6v4.0EPSS0.597%PoCs0SignalsSTIX

WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in SIP Proxy Configuration

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS SIP Proxy module allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-6947.

CWE-79Jul 2, 2026
CVSS4.8v4.0EPSS0.169%PoCs0SignalsSTIX

WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in spamBlocker Module

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS spamBlocker module allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-1071. This issue affects Fireware OS 12.0 up to and including 12.12, 12.5 up to and including 12.5.18, and 2025.1 up to and including 2026.2.

CWE-79Jul 2, 2026
CVSS4.8v4.0EPSS0.169%PoCs0SignalsSTIX

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.

CWE-79Jul 2, 2026
CVSS4.8v4.0EPSS0.169%PoCs0SignalsSTIX

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. This vulnerability is an additional unmitigated attack path for CVE-2025-13937.

CWE-79Jul 2, 2026
CVSS4.8v4.0EPSS0.169%PoCs0SignalsSTIX

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. This vulnerability is an additional unmitigated attack path for CVE-2025-13936.

CWE-79Jul 2, 2026
CVSS4.8v4.0EPSS0.169%PoCs0SignalsSTIX

WatchGuard Firebox Management Web UI Denial of Service via Unsafe Deserialization

An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by sending malformed or crafted data to the put_data endpoint, which performs unsafe deserialization of the attacker-supplied input.

CWE-502Jul 2, 2026
CVSS6.9v4.0EPSS0.331%PoCs0SignalsSTIX

WatchGuard Firebox Arbitrary File Write vis Path Traversal in Fireware Web UI

A path traversal vulnerability in the Fireware OS Web UI on WatchGuard Firebox systems may allow a privileged authenticated remote attacker to execute arbitrary code in the context of an elevated system process.

CWE-22Apr 1, 2026
CVSS8.6v4.0EPSS0.638%PoCs0SignalsSTIX

WatchGuard Firebox Cross-Site Request Forgery (CSRF) in Fireware Web UI

A Cross-Site Request Forgery (CSRF) vulnerability in the WatchGuard Fireware OS WebUI could allow a remote attacker to trigger a denial-of-service (DoS) condition in the Fireware Web UI by convincing an authenticated administrator into visiting a malicious web page.

CWE-352Mar 30, 2026
CVSS7.1v4.0EPSS0.238%PoCs0SignalsSTIX

WatchGuard Firebox Insecure Deserialization in Fireware Access Portal

An Insecure Deserialization vulnerability in WatchGuard Fireware OS allows an attacker that has obtained write access to the local filesystem through another vulnerability to execute arbitrary code in the context of the portald user. Note, this vulnerability does not affect Firebox platforms that do not support the Access Portal feature, including the T15 and T35.

CWE-502Mar 30, 2026
CVSS8.4v4.0EPSS0.284%PoCs0SignalsSTIX

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.

CWE-440Mar 3, 2026
CVSS6.9v4.0EPSS0.276%PoCs0SignalsSTIX

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.

CWE-79Mar 3, 2026
CVSS5.1v4.0EPSS0.206%PoCs0SignalsSTIX

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.

CWE-787Mar 3, 2026
CVSS8.6v4.0EPSS6.4%PoCs0SignalsSTIX

WatchGuard Firebox LDAP Injection

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 authenticate as an LDAP user with a partial identifier if they additionally have that user's valid passphrase.

CWE-90Jan 30, 2026
CVSS7.0v4.0EPSS0.68%PoCs0SignalsSTIX

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 …

CWE-787Dec 19, 2025
CVSS9.3v4.0EPSS26.2%PoCs1SignalsSTIX

WatchGuard Firebox Authenticated Stack Overflow in Certificate Request Command

A stack-based buffer overflow vulnerability [CWE-121] in WatchGuard Fireware OS's certificate request command could allow an authenticated privileged user to execute arbitrary code via specially crafted CLI commands.

CWE-121Dec 4, 2025
CVSS7.5v4.0EPSS0.344%PoCs0SignalsSTIX