CVE-2026-19318

Published Aug 28, 2026 Modified Aug 29, 2026 CWE-121 CWE-129 CWE-191

Description

A stack-based buffer overflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic.

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EPSS — Exploit Prediction

0.0047
Probability of exploitation
0.39%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-121 CWE-121
CWE-129 CWE-129
CWE-191 CWE-191

References

Frequently Asked Questions

What is CVE-2026-19318? +
A stack-based buffer overflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic.
How do I check if I'm vulnerable to CVE-2026-19318? +
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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