WatchGuard Fireware OS vulnerabilities
76 known CVE vulnerabilities in WatchGuard Fireware OS, translated and rated.
- CVE-2026-13374Medium
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.
- CVE-2026-13373Medium
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.
- CVE-2026-13368High
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.
- CVE-2026-13084High
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.
- CVE-2026-13054High
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.
- CVE-2026-13053High
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.
- CVE-2026-13050High
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.
- CVE-2026-3987High
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.
- CVE-2026-4315Medium
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.
- CVE-2026-4266Medium
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.
- CVE-2026-3344Medium
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-2026-1498High
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.
- CVE-2025-1547High
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.
- CVE-2025-1545High
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.
- CVE-2025-13940Medium
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.
- CVE-2025-13938Medium
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.
- CVE-2025-13937Medium
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.
- CVE-2025-13936Medium
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.
- CVE-2025-12196High
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.
- CVE-2025-12195High
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.
- CVE-2025-12026High
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.
- CVE-2025-11838High
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.
- CVE-2025-6999Medium
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.
- CVE-2025-4804Medium
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.
- CVE-2025-0178Medium
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.
- CVE-2024-5974High
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

