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-2026-13377 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. This issue affects Fireware OS 12.0 up to and...

CVE-2026-13377

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. This issue affects Fireware OS 12.0 up to and...

CVE-2026-13376

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...

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-2026-13375

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 O...

CVE-2026-13375

WatchGuard Fireware OS Autotask Technology Integration module is affected by CVE-2026-13375, a Stored XSS vulnerability. Affected versions are Fireware OS 12.4–12.12, 12.5–12.5.18, and 2025.1–2026.2. Attack vector is NETWORK with low attack complexity and high privileges required; user interactio...

CVE-2026-13375 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 O...

CVE-2026-13374

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. This issue affects Firewar...

CVE-2026-13374

CVE-2026-13374 is a stored XSS vulnerability in WatchGuard Fireware OS (ConnectWise Technology Integration module). It affects Fireware OS versions 12.4–12.12, 12.5–12.5.18, and 2025.1–2026.2. The issue stems from improper neutralization of input during web page generation, allowing stored cross-...

CVE-2026-13374 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. This issue affects Firewar...

CVE-2026-13373 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. This issue affects Fireware O...

CVE-2026-13373

WatchGuard Fireware OS Tigerpaw Technology Integration module is affected by CVE-2026-13373, exposing a Stored Cross-Site Scripting (XSS) vulnerability. The issue arises from improper neutralization of input during web page generation, enabling stored XSS in affected Fireware versions: 12.4–12.12...

CVE-2026-13373

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. This issue affects Fireware O...

CVE-2026-13371

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

PT-2026-55328

Name of the Vulnerable Software and Affected Versions WatchGuard Firebox Management Web UI affected versions not specified Description An authenticated administrator can cause a denial-of-service condition in the Fireware Management Web UI. This occurs when malformed or crafted data is sent to th...

PT-2026-55336

Name of the Vulnerable Software and Affected Versions WatchGuard Fireware OS versions 11.0 through 11.12.4 Update1 WatchGuard Fireware OS versions 12.0 through 12.12 WatchGuard Fireware OS versions 2025.1 through 2025.6.2 Description An issue exists in the backup/restore feature where firmware...

PT-2026-55337

Name of the Vulnerable Software and Affected Versions WatchGuard Fireware OS versions 12.1 through 12.12 WatchGuard Fireware OS versions 2025.1 through 2026.2 Description WatchGuard Fireware OS on a FireCluster may use a hard-coded encryption key to encrypt saved credentials for Access Portal...

PT-2026-55322

Name of the Vulnerable Software and Affected Versions WatchGuard Fireware OS versions 11.8 through 11.12.4 Update1 WatchGuard Fireware OS versions 12.0 through 12.12 WatchGuard Fireware OS versions 2025.1 through 2026.2 Description An Out-of-bounds Write issue exists in the networkd process. This...