CVE-2026-86132High· 8.2▾ TwilightAn 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 …
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 45.1 · likelihood 0 · exploitation 0
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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.
fireware_os >= 2026.3 < 2026.3.2fireware_os >= 2025.0 < 2026.2.3fireware_os >= 12.0 < 12.12.3fireware_os >= 12.0 < 12.5.21Fireware OS 2026.3.2, Fireware OS 2026.2.3, Fireware OS 12.12.3, Fireware OS 12.5.21
Connected by shared product, vendor, weakness, or advisory.
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