NetSight
high7.5

CVE-2026-86132

An integer underflow vulnerability in the WatchGuard Fireware OS IKEv2 daemon (iked) allows a remote, unauthenticated attacker to crash the process by sending …

Impact

An integer underflow vulnerability in the WatchGuard Fireware OS IKEv2 daemon (iked) allows a remote, unauthenticated attacker to crash the process by sending a specially crafted encrypted IKEv2 message negotiated with an AES-GCM cipher suite.

Affected products

VendorProductAffected versions
WatchguardFireware
from 12.0 before 12.5.21
from 12.12 before 12.12.3
from 2025.0 before 2026.2.3
from 2026.3 before 2026.3.2

Weakness classification

References