CVE-2026-19316

Published Aug 28, 2026 CWE-415 CWE-416

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.

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Weakness Type (CWE)

CWE-415 CWE-415
CWE-416 Use After Free

References

Frequently Asked Questions

What is CVE-2026-19316? +
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.
How do I check if I'm vulnerable to CVE-2026-19316? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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