CVE-2026-90441: Fireware OS Missing Authorization in wgagent Management API Allows Denial of Service - Variant B
WatchGuard · Fireware OS
Vendor fix available · Affected: WatchGuard Fireware OS · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 14% of scored CVEs
DescriptionCVE.org
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.
Affected products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- WatchGuard · Fireware OSfrom 2026.3 before 2026.3.2; from 2025.0 before 2026.2.3; from 12.0 before 12.12.3
- WatchGuard · Fireware OSfrom 12.0 before 12.5.21
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- WatchGuard
- Published
- September 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-90441 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.