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Microsoft Security Response CenterCVE-2026-121677

Windows Remote Desktop Client Information Disclosure Vulnerability

HighVendor CVSS 6.5 / 10 1 CVE Published Nov 10, 2026 at 8:00 AM UTC

Summary

Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.

Products covered

  • Windows App Client for Windows Desktop

Remediation

Release Notes

Vendor-listed fixes

  • 2.0.1489.0

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.