Is CVE-2026-85424 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-85424?

CVE-2026-85424 has a CVSS v3 severity of CRITICAL (9.8).

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CVE-2026-85424

Description

MOOS core-moos through 10.4.0 lacks authentication in the wire protocol, allowing unauthenticated clients to connect with full publish, subscribe, and database clear privileges. Attackers can bypass the compile-time protocol string check and connect with arbitrary client names to execute privileged operations including DB_CLEAR which resets all variables and clears client mail queues.