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Microsoft Security Response CenterCVE-2026-62873

Microsoft 365 Admin Center Elevation of Privilege Vulnerability

CriticalVendor CVSS 9.8 / 10 1 CVE Published Aug 6, 2026 at 7:00 AM UTC

Summary

Improper verification of cryptographic signature in Microsoft 365 Admin Center allows an unauthorized attacker to elevate privileges over a network.

Products covered

  • Microsoft 365 Admin Center

Remediation

Separate remediation guidance was not included in the collected bulletin.

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.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.