WatchGuard Fireware OS vulnerabilities

A stack-based buffer overflow in the iked process of WatchGuard Fireware OS allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic.

A type confusion vulnerability in the iked process of WatchGuard Fireware OS allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic.

A heap overflow vulnerability in the iked process of WatchGuard Fireware OS allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic.

A stack-based buffer overflow in the epm (Endpoint Protection Manager) service used by the deprecated Mobile Security feature in WatchGuard Fireware OS allows an unauthenticated remote attacker to execute arbitrary code.

An integer underflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.

A stack-based buffer overflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.

An out-of-bounds read vulnerability in the iked process of WatchGuard Fireware OS allows a remote unauthenticated attacker to cause a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.

A buffer overflow vulnerability in the WatchGuard Fireware OS Management Web UI allows an authenticated administrator with network access to cause a denial of service (DoS) condition or potentially execute arbitrary code by sending specially crafted network traffic.

An out-of-bounds read vulnerability in the iked process of WatchGuard Fireware OS allows a remote unauthenticated attacker to cause a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.

A double-free vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to cause a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.

An integer underflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to cause a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS allows an unauthenticated attacker on the same local network segment to execute arbitrary code. Affected versions include 11.0 up to 11.12.4_Update1, 12.0 up to 12.12, and 2025.1 up to 2026.2.

In WatchGuard Fireware OS on a FireCluster, under exceptional circumstances, a hard-coded encryption key may be used to encrypt saved credentials for Access Portal resources. This vulnerability does not affect devices without Access Portal support or standalone Fireboxes not in a FireCluster.

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.

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.

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.

The SIP Proxy module of WatchGuard Fireware OS is vulnerable to Stored XSS. This is an additional unmitigated attack path for CVE-2025-6947.

A Stored Cross-Site Scripting (XSS) vulnerability was found in the spamBlocker module of WatchGuard Fireware OS due to improper input neutralization during web page generation. This is an additional unmitigated attack vector for the previously disclosed CVE-2025-1071.

Stored XSS vulnerability in the Autotask Technology Integration module of WatchGuard Fireware OS. This is an additional unmitigated attack vector for CVE-2025-13938.

The ConnectWise Technology Integration module of WatchGuard Fireware OS is vulnerable to Stored XSS. This is an additional unmitigated attack path for CVE-2025-13937.

The Tigerpaw Technology Integration module of WatchGuard Fireware OS is vulnerable to Stored XSS. This is an additional unmitigated attack path for CVE-2025-13936.

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 to execute arbitrary code in the context of the iked process on Fireboxes with Mobile VPN IKEv2 configured to use an external LDAP server.

A null pointer dereference vulnerability in WatchGuard Fireware OS allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending specially crafted IKEv2 messages. This affects both Mobile User VPN with IKEv2 and Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.

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.

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.

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.

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.

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.

An Insecure Deserialization vulnerability in WatchGuard Fireware OS allows an attacker with write access to the local filesystem to execute arbitrary code in the context of the portald user. This does not affect Firebox platforms without Access Portal support, including T15 and T35.

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.

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. It 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.

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

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. Only affects systems with at least one authentication hotspot configured.

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

Stored XSS vulnerability in WatchGuard Fireware OS in the Autotask Technology Integration module. Improper input neutralization during web page generation allows persistent injection of malicious script.

Stored XSS vulnerability in WatchGuard Fireware OS in the ConnectWise Technology Integration module. Improper input neutralization during web page generation allows persistent injection of malicious script.

Stored XSS vulnerability in WatchGuard Fireware OS in the Tigerpaw Technology Integration module. Improper input neutralization during web page generation allows persistent injection of malicious script.

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.

Out-of-bounds write vulnerability in WatchGuard Fireware OS's CLI. An authenticated privileged user can execute arbitrary code via specially crafted IPSec configuration commands.

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.

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.

An HTTP Request Smuggling vulnerability in the Authentication portal of WatchGuard Fireware OS allows a remote attacker to bypass request parameter sanitization and perform a reflected self-XSS attack. WatchGuard believes there is no practical exploit chain with meaningful security impact.

Improper Neutralization of Input During Web Page Generation (XSS) vulnerability in WatchGuard Fireware OS allows Stored XSS via the spamBlocker module. This vulnerability requires an authenticated administrator session to a locally managed Firebox.

An Improper Input Validation vulnerability in WatchGuard Fireware OS allows an attacker with network access to manipulate the HTTP Host header in requests to the Web UI. This could redirect users to malicious websites, poison the web cache, or inject malicious JavaScript into responses.

A buffer overflow in WatchGuard Fireware OS may allow an authenticated remote attacker with privileged management access to execute arbitrary code with system privileges on the firewall. This issue affects Fireware OS from 11.9.6 through 12.10.3.