CVE-2026-13054: CWE-22 in WatchGuard Fireware OS
This vulnerability allows remote attackers to create arbitrary files on affected installations of WatchGuard FireWare OS. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.2. The following CVEs are assigned: CVE-2026-13054.
AI Analysis
Technical Summary
This vulnerability (CWE-22) in WatchGuard Fireware OS Management Web UI enables a privileged authenticated attacker to perform path traversal attacks, resulting in arbitrary file write capabilities on the Firebox device's filesystem. The CVSS 4.0 base score is 8.6, indicating high severity with network attack vector, low attack complexity, no user interaction required, and high impact on confidentiality, integrity, and availability. Affected versions include =11.0, =12.0, =12.5, =2025.1, ranges >=12.0 <=12.12 and >=2025.1 <=2026.2. No vendor advisory or patch information is currently available.
Potential Impact
An attacker with privileged authenticated access to the Fireware OS Management Web UI can exploit this vulnerability to write arbitrary files on the Firebox filesystem. This could lead to unauthorized modification of system files, potential persistence mechanisms, or disruption of device operation. The high CVSS score reflects significant impact on confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict privileged access to the Management Web UI to trusted administrators only and monitor for suspicious activity related to file writes on the device.
CVE-2026-13054: CWE-22 in WatchGuard Fireware OS
Description
This vulnerability allows remote attackers to create arbitrary files on affected installations of WatchGuard FireWare OS. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.2. The following CVEs are assigned: CVE-2026-13054.
CVSS v4.0
Score 8.6high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-22) in WatchGuard Fireware OS Management Web UI enables a privileged authenticated attacker to perform path traversal attacks, resulting in arbitrary file write capabilities on the Firebox device's filesystem. The CVSS 4.0 base score is 8.6, indicating high severity with network attack vector, low attack complexity, no user interaction required, and high impact on confidentiality, integrity, and availability. Affected versions include =11.0, =12.0, =12.5, =2025.1, ranges >=12.0 <=12.12 and >=2025.1 <=2026.2. No vendor advisory or patch information is currently available.
Potential Impact
An attacker with privileged authenticated access to the Fireware OS Management Web UI can exploit this vulnerability to write arbitrary files on the Firebox filesystem. This could lead to unauthorized modification of system files, potential persistence mechanisms, or disruption of device operation. The high CVSS score reflects significant impact on confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict privileged access to the Management Web UI to trusted administrators only and monitor for suspicious activity related to file writes on the device.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WatchGuard
- Date Reserved
- 2026-06-23T17:55:06.157Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a46f27f27e9c797194fff8b
Added to database: 07/02/2026, 23:21:35 UTC
Last enriched: 08/14/2026, 15:00:53 UTC
Last updated: 08/17/2026, 00:41:09 UTC
Views: 106
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