CVE-2026-78009

Summary

An out-of-bounds read 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 Software

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

Weaknesses

  • CWE-125: CWE-125
  • CWE-20: CWE-20

References