CVE-2026-19318 — Fireware OS Pre-Authentication Stack Buffer Overflow in iked Allows Remote Code Execution

CVE-2026-19318

Fireware OS Pre-Authentication Stack Buffer Overflow in iked Allows Remote Code Execution PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
WatchGuard / Fireware OS	affected 2025.0 before 2026.2.2; affected 12.0 before 12.12.2
WatchGuard / Fireware OS	affected 12.0 before 12.5.20; affected 2026.3 before 2026.3.1

CWE

CWE-121, CWE-129, CWE-191

References

https://psirt.watchguard.com/CVE-2026-19318

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.