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Findings

CVE-2022-26318

WatchGuard Firebox and XTM Appliances Arbitrary Code Execution

Published Mar 4, 2022 · updated Jun 16, 2026 · watchguard fireware

On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code, aka FBX-22786. This vulnerability impacts Fireware OS before 12.7.2_U2, 12.x before 12.1.3_U8, and 12.2.x through 12.5.x before 12.5.9_U2.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 4, 2022 · Catalog

    Detected

    On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code, aka FBX-22786. This vulnerability impacts Fireware OS before 12.7.2_U2, 12.x before 12.1.3_U8, and 12.2.x through 12.5.x before 12.5.9_U2.

  2. Mar 25, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Apr 15, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code, aka FBX-22786. This vulnerability impacts Fireware OS before 12.7.2_U2, 12.x before 12.1.3_U8, and 12.2.x through 12.5.x before 12.5.9_U2.

Required action

Apply updates per vendor instructions.

CISA due date Apr 15, 2022

Affected

  • cpe watchguard/firewareversion unspecified
  • cpe watchguard/fireware12.1.3
  • vendor WatchGuard Firebox and XTM Appliancesversion unspecified

Sources

  • CISA KEVConfirmed exploitationCVE-2022-26318

    On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2022-26318

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2022-26318

    30-day exploitation probability 78.2%

    first.org
  • Metasploit ModulesPublic exploit moduleexploit_linux/http/watchguard_firebox_unauth_rce_cve_2022_26318

    Public module reference (good). Module source is not copied into this catalog.

    rapid7.com
  • NIST NVDVulnerability recordCVE-2022-26318

    On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code, aka FBX-22786. This vulnerability impacts Fireware OS before 12.7.2_U2, 12.x before 12.1.3_U8, and 12.2.x through 12.5.x before 12.5.9_U2.

    nvd.nist.gov

References