Loading vulnerability…
CVE-2026-86133 is an integer underflow vulnerability in the IKE daemon (iked) in WatchGuard Fireware OS. An attacker that completes the initial IKEv2 handshake can send a specially crafted encrypted IKEv2 message that crashes the iked process, causing a denial-of-service condition.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Vulnerabilidad de subdesbordamiento de enteros en el procesamiento IKEv2 de WatchGuard Fireware OS que permite a un actor remoto, tras completar el handshake inicial IKEv2, provocar una denegación de servicio al terminar el proceso iked.
An integer-underflow denial-of-service vulnerability in the WatchGuard Fireware OS IKE daemon (iked). An unauthenticated remote attacker that has completed the initial IKEv2 handshake can send a crafted encrypted IKEv2 message to crash the iked process, affecting availability.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.