CVE-2026-86136: CWE-22 in WatchGuard Fireware OS
A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and read arbitrary files accessible to the daemon by submitting a specially crafted management API request.
CVE-2026-86136: CWE-22 in WatchGuard Fireware OS
Description
A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and read arbitrary files accessible to the daemon by submitting a specially crafted management API request.
CVSS v4.0
Score 7.1high
Affected software
WatchGuard
Fireware OS
WatchGuard
Fireware OS
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WatchGuard
- Date Reserved
- 2026-09-05T03:22:58.693Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abc4826680226ef686df2cd
Added to database: 09/29/2026, 23:22:14 UTC
Last updated: 09/29/2026, 23:22:14 UTC
Views: 1
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