CVE-2026-3343
5.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Summary
A reflected cross-site scripting (XSS) vulnerability in the Fireware OS Web UI enabled execution of malicious JavaScript in the context of an authenticated management user's browser when they click on a specially crafted link.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| WatchGuard | Fireware OS | 2025.1 < 2026.1.2 | affected |
| WatchGuard | Fireware OS | 12.7 < 12.11.8 | affected |
Weaknesses
- CWE-79: CWE-79
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://psirt.watchguard.com/CVE-2026-3343
- https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00004
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