CVE-2026-86133: Improper Validation of Specified Quantity in Input

An integer underflow vulnerability in the WatchGuard Fireware OS IKE daemon iked allows a remote attacker who has completed the initial IKEv2 handshake to crash the iked process by sending a specially crafted encrypted IKEv2 message, resulting in a denial of service...

CVE-2026-18145: Stack-based Buffer Overflow

A stack-based buffer overflow vulnerability in the spamBlocker spamd service of WatchGuard Fireware OS allows an authenticated attacker with administrator privileges to crash the service or potentially execute arbitrary code by sending a specially crafted management request...

CVE-2026-86132: Integer Underflow (Wrap or Wraparound)

An integer underflow vulnerability in the WatchGuard Fireware OS IKEv2 daemon iked allows a remote, unauthenticated attacker to crash the process by sending a specially crafted encrypted IKEv2 message negotiated with an AES-GCM cipher suite...

CVE-2026-86131: Improper Certificate Validation

A code injection vulnerability in WatchGuard Fireware OS's BOVPN Over TLS client configuration handling allows an attacker who controls the remote VPN server to execute arbitrary commands as root on the connecting Firebox...

CVE-2026-13224: Improper Limitation of a Pathname to a Restricted Directory

A path traversal vulnerability in the Fireware OS WebUI management agent allows an authenticated administrator to read or list arbitrary files on the local filesystem by sending a specially crafted management request...

PT-2026-103017

A NULL pointer dereference vulnerability in the WatchGuard Fireware OS authentication process allows a remote, unauthenticated attacker to crash the management daemon by sending a specially request to the login interface, resulting in a denial of service...

CVE-2026-13046: Deserialization of Untrusted Data

A deserialization of untrusted data vulnerability in WatchGuard Fireware OS's SAML single sign-on session handling samld allows an attacker who has already obtained the ability to write files on the appliance to execute arbitrary code in the context of the samld service by causing samld to load a...

CVE-2026-86104: Uncontrolled Resource Consumption

An uncontrolled resource consumption vulnerability in the Fireware OS login process wgagent allows a remote, unauthenticated attacker to cause a denial of service by sending a specially crafted request...

CVE-2026-86134: NULL Pointer Dereference

A NULL pointer dereference vulnerability in the WatchGuard Fireware OS authentication process allows a remote, unauthenticated attacker to crash the management daemon by sending a specially request to the login interface, resulting in a denial of service...

CVE-2026-18105: Uncontrolled Resource Consumption

An uncontrolled resource consumption vulnerability in Fireware OS's diagnostic tasks feature allows a low-privileged, authenticated user to cause a denial of service of the system's diagnostic tools by repeatedly starting and aborting a specially crafted diagnostic task through the web UI...

CVE-2026-86105: Improper Handling of Unicode Encoding

An improper authorization vulnerability in Fireware OS's Access Portal reverse proxy allows an authenticated, low-privileged Access Portal user to access other web applications they are not authorized for by sending a specially crafted request for a different resource which they are authorized to...

CVE-2026-86104 Fireware OS Resource Exhaustion in Login Process Allows Denial of Service

An uncontrolled resource consumption vulnerability in the Fireware OS login process wgagent allows a remote, unauthenticated attacker to cause a denial of service by sending a specially crafted request...

CVE-2026-86104 Fireware OS Resource Exhaustion in Login Process Allows Denial of Service

An uncontrolled resource consumption vulnerability in the Fireware OS login process wgagent allows a remote, unauthenticated attacker to cause a denial of service by sending a specially crafted request...

CVE-2026-86104

A vulnerability in the Fireware OS login process (wgagent ) allows a remote, unauthenticated attacker to cause a denial of service . The root cause is an uncontrolled resource consumption issue triggered by sending a specially crafted request. No specific affected versions, remediation details, o...

CVE-2026-18145 Fireware OS Stack-based Buffer Overflow in spamd Allows Remote Code Execution

A stack-based buffer overflow vulnerability in the spamBlocker spamd service of WatchGuard Fireware OS allows an authenticated attacker with administrator privileges to crash the service or potentially execute arbitrary code by sending a specially crafted management request...

CVE-2026-86128 Fireware OS NULL Pointer Dereference in NetFlow IPv6 Traffic Processing Allows Remote Denial of Service

A NULL pointer dereference vulnerability in Fireware OS's NetFlow packet-processing feature allows a remote, unauthenticated attacker to cause a denial of service by sending a specially crafted IPv6 packet...

CVE-2026-86132

A pre-authentication integer underflow vulnerability exists in the WatchGuard Fireware OS IKEv2 daemon (iked ). This flaw allows a remote, unauthenticated attacker to cause a Denial of Service (DoS) by crashing the process. The attack is triggered by sending a specially crafted encrypted IKEv2 me...

CVE-2026-86136

The Fireware OS is impacted by a missing authorization vulnerability in the wgagent management daemon 's session initialization function. An authenticated, low-privileged user, such as a guest administrator or read-only account, can submit a specially crafted management API request to crash the w...

CVE-2026-86132 Fireware OS Pre-Authentication Integer Underflow in iked Allows Denial of Service

An integer underflow vulnerability in the WatchGuard Fireware OS IKEv2 daemon iked allows a remote, unauthenticated attacker to crash the process by sending a specially crafted encrypted IKEv2 message negotiated with an AES-GCM cipher suite...

CVE-2026-86133 Fireware OS Pre-Authentication Integer Underflow in iked Allows Remote Denial of Service

An integer underflow vulnerability in the WatchGuard Fireware OS IKE daemon iked allows a remote attacker who has completed the initial IKEv2 handshake to crash the iked process by sending a specially crafted encrypted IKEv2 message, resulting in a denial of service...