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Microsoft Security Response CenterCVE-2026-66801

Microsoft Xbox Remote Code Execution Vulnerability

High 1 CVE Published Nov 10, 2026 at 8:00 AM UTC

Summary

Heap-based buffer overflow in Xbox allows an unauthorized attacker to execute code over a network.

Products covered

  • Microsoft GDK on Xbox

Remediation

Release Notes

Vendor-listed fixes

  • 2610

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.