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Microsoft Security Response CenterCVE-2026-62873

Microsoft 365 Admin Center Elevation of Privilege Vulnerability

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

Read the vendor bulletin Get alerts for Microsoft 365 Admin Center
9.8CVSS out of 10Critical severity
Scope

What the vendor says is affected

  • Microsoft 365 Admin Center
Timeline

When this advisory changed

  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.

Vulnerabilities

CVEs named in this advisory

CVE-2026-62873View CVSS, KEV, EPSS, and threat context
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