Zero-Day

A zero-day vulnerability is a software security flaw that is unknown to the vendor and has no available patch, leaving systems exposed until a fix is developed and deployed. In enterprise AI governance, zero-day vulnerabilities pose significant risks because AI systems often integrate with multiple software dependencies and cloud services that could harbor unknown flaws. Organizations must implement comprehensive vulnerability management, regular security audits, and incident response protocols to minimize exposure to these unpredictable threats.

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ResearchUS2026-09-21

Meta Muse Zero-Day Turns AI Agent Permissions Into an Endpoint Attack Pivot

Security researcher Patrick Wardle disclosed a local zero-day in Meta's Muse macOS AI assistant that lets an unprivileged local process redirect dictation traffic to an attacker-controlled endpoint. The flaw can expose authentication material, enable prompt injection, and abuse any OS permissions the user has granted to the app. No patch has been confirmed, and conventional endpoint detection tools cannot reliably distinguish the resulting malicious traffic from legitimate app behavior.

Meta Meta Muse privilege escalation prompt injection endpoint security AI agent security zero-day data privacy