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WatchGuard: actively exploited vulnerabilities

4 vulnerabilities in WatchGuard products (Firebox / XTM (Fireware)) are in CISA’s catalog of exploited vulnerabilities. Last added: December 19, 2025.

WatchGuard security advisories

The brand’s general security advisories page, not the advisory for a specific vulnerability (address checked September 28, 2026).

By category

Add just one WatchGuard category to your radar, or open its page.

A high count also reflects how widely a product is deployed and how much attackers care about it: it is not a security rating.

Affected products

  • Firebox / XTM (Fireware)4 vulnerabilities, Firewalls and VPNs

Name used by CISA: WatchGuard. Product families: indicative classification by this site.

Patch first

In the order of the main list (Patch first): recent additions first, then the most severe. The number is the rank within this WatchGuard list.

  1. Rank 1

    WatchGuard Firebox / XTM (Fireware)CVE-2025-14733

    WatchGuard Firebox Out of Bounds Write Vulnerability

    Ransomware

    CVSS severity 9.8critical

    Added Dec 19, 2025

  2. Rank 2

    WatchGuard Firebox / XTM (Fireware)CVE-2025-9242

    WatchGuard Firebox Out-of-Bounds Write Vulnerability

    CVSS severity 9.8critical

    Added Nov 12, 2025

  3. Rank 3

    WatchGuard Firebox / XTM (Fireware)CVE-2022-26318

    WatchGuard Firebox and XTM Appliances Arbitrary Code Execution

    CVSS severity 9.8critical

    Added Mar 25, 2022

  4. Rank 4

    WatchGuard Firebox / XTM (Fireware)CVE-2022-23176

    WatchGuard Firebox and XTM Privilege Escalation Vulnerability

    CVSS severity 8.8high

    Added Apr 11, 2022

Follow and verify

Indicative classification, based on the vendor and product names given by CISA. How products are classified.