CVE-2026-8247

WatchGuard Fireware OS contains an out-of-bounds write vulnerability (CVE-2026-8247) affecting Fireware OS 11.0–11.12.4_Update1, 12.0–12.12, and 2025.1–2026.2. An unauthenticated attacker on the same local network segment can potentially execute arbitrary code. The advisory lists the vulnerable c...

CVE-2026-8247 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 11.12.4Update1, 12.0 up to and including 12.12 and 2025.1 up to and...

CVE-2026-8247

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 11.12.4Update1, 12.0 up to and including 12.12 and 2025.1 up to and...

CVE-2026-13728 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...

CVE-2026-13728

WatchGuard Fireware OS on a FireCluster is affected by CVE-2026-13728. Affected versions include Fireware OS 12.1 through 12.12, and 2025.1 through 2026.2. In exception circumstances, an embedded encryption key is used to encrypt saved credentials for Access Portal resources, which constitutes th...

CVE-2026-13084

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...

CVE-2026-13084 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...

CVE-2026-13084 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...

CVE-2026-13368 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...

CVE-2026-13368 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...

CVE-2026-13722

CVE-2026-13722 concerns WatchGuard Fireware OS. The issue is a firmware validation bypass when processing a backup image via the backup/restore feature, enabling an authenticated administrator to install a tampered firmware image. Affected are Fireware OS versions: 11.0–11.12.4_Update1, 12.0–12.1...

CVE-2026-13722 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...

CVE-2026-13384

CVE-2026-13384 is an Out-of-bounds Write vulnerability in WatchGuard Fireware OS wgagent. An authenticated privileged user could remotely execute arbitrary code via specially crafted requests to the Management Web UI. Affected: Fireware OS 12.1–12.12 and 2025.1–2026.2. CVSS details indicate netwo...

CVE-2026-13383

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...

CVE-2026-13383

CVE-2026-13383 is an Out-of-bounds Write vulnerability in WatchGuard Fireware OS ikestubd. An authenticated privileged user could potentially execute arbitrary code via specially crafted requests to the Management Web UI. Affected: Fireware OS 12.1–12.12 and 2025.1–2026.2. Impact severity is high...

CVE-2026-13377 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...

CVE-2026-13377 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...

CVE-2026-13377

WatchGuard Fireware OS SIP Proxy module is affected by a Stored XSS via improper input neutralization during web page generation. The vulnerability affects Fireware OS versions 12.0–12.12, 12.5–12.5.18, and 2025.1–2026.2. Root cause: improper sanitization in the SIP Proxy configuration web interf...

CVE-2026-13376 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...

CVE-2026-13376

CVE-2026-13376 affects WatchGuard Firebox via the Fireware OS spamBlocker module. Vulnerable component: spamBlocker in Fireware OS; vulnerable versions: Fireware OS 12.0–12.12, 12.5–12.5.18, and 2025.1–2026.2. Description: Improper Neutralization of Input During Web Page Generation leading to Sto...