Microsoft Exchange Server Remote Code Execution Vulnerability

CriticalVendor CVSS 8.8 / 10 1 CVE Published Nov 10, 2026 at 8:00 AM UTC

Summary

Improper input validation in Microsoft Exchange Server allows an authorized attacker to execute code over a network.

Install KB5133453.

Nov 10, 2026 at 8:00 AM UTC
Published by Microsoft Security Response Center
The publication date reported by the vendor.
Nov 10, 2026 at 8:15 PM UTC
Added to SecurityAlert
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Details collected from Microsoft Security Response Center.

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