CVE-2026-86132 — Fireware OS Pre-Authentication Integer Underflow in iked Allows Denial of Service
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 crafte…
Published: 2026-09-29 · CVSS: 8.2 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7