ZDI-CAN-31459: ZDI-26-499: WatchGuard FireWare OS cli Token Parser Stack-based Buffer Overflow Remote Code Execution Vulnerability
Published Jul 29, 2026
·Updated
This vulnerability allows remote attackers to execute arbitrary code on affected installations of WatchGuard FireWare OS. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 4.7. The following CVEs are assigned: CVE-2026-13053.
Affected Software
1 affected component
WatchGuard Fireware OS
Event History
Jul 29, 2026
Advisory Published
via ZDI·05:00 AM
Data Sourced
via ZDI·05:00 AM
Description
Frequently Asked Questions
1
What is the severity of ZDI-CAN-31459?
ZDI-CAN-31459 has a CVSS rating of 4.7, indicating a medium severity level.
2
How do I fix ZDI-CAN-31459?
To mitigate ZDI-CAN-31459, update your WatchGuard FireWare OS to the latest version that addresses this vulnerability.
3
What type of vulnerability is ZDI-CAN-31459?
ZDI-CAN-31459 is a stack-based buffer overflow vulnerability that allows for remote code execution.
4
Is authentication required to exploit ZDI-CAN-31459?
Yes, authentication is required to exploit ZDI-CAN-31459 on affected installations of WatchGuard FireWare OS.
5
What products are affected by ZDI-CAN-31459?
ZDI-CAN-31459 affects installations of WatchGuard FireWare OS.