CVE-2026-19318

Summary

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 Software

VendorProductVersion RangeStatus
WatchGuardFireware OS2025.0 < 2026.2.2affected
WatchGuardFireware OS12.0 < 12.12.2affected
WatchGuardFireware OS12.0 < 12.5.20affected

Weaknesses

  • CWE-121: CWE-121
  • CWE-129: CWE-129
  • CWE-191: CWE-191

References