# CVE-2026-19316

## Summary

- **CVE ID:** CVE-2026-19316
- **Severity:** HIGH
- **CVSS Score:** 8.7 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-415, CWE-416
- **Published:** Aug 27, 2026
- **Last Modified:** Sep 3, 2026

## Description

A double-free vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.

## Affected Products

- WatchGuard — Fireware OS (2025.0)
- WatchGuard — Fireware OS (12.0)
- WatchGuard — Fireware OS (2026.3)

## References

- [CNA](https://psirt.watchguard.com/CVE-2026-19316)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.32%
- **EPSS Percentile:** 24.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._