Elevation of Privilege Vulnerability in Microsoft 365 Admin Center
CVE-2026-62873

9.8CRITICAL

Key Information:

Vendor

Microsoft
Status
Microsoft 365 Admin Center
Vendor
CVE Published:
6 August 2026

What is CVE-2026-62873?

A vulnerability exists within the Microsoft 365 Admin Center due to improper verification of cryptographic signatures. This flaw could enable an unauthorized attacker to gain elevated privileges over a network, potentially compromising secure operations and accessing sensitive administrative functionalities.

Affected Version(s)

Microsoft 365 Admin Center -

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.