CVE-2026-13371
6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by sending malformed or crafted data to the put_data endpoint, which performs unsafe deserialization of the attacker-supplied input.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| WatchGuard | Fireware OS | 2025.1 < 2026.2.1 | affected |
| WatchGuard | Fireware OS | 12.0 < 12.12.1 | affected |
| WatchGuard | Fireware OS | 12.0 < 12.5.19 | affected |
Weaknesses
- CWE-502: CWE-502
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://psirt.watchguard.com/CVE-2026-13371
- https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00014
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