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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Microsoft Microsoft 365 Admin Center affected
Version Status Constraints
- affected —

No data.

No data.

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No data.

Project Subscriptions

Vendors Products
Microsoft Subscribe
365 Admin Center Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62873 cve-icon
History

Fri, 07 Aug 2026 01:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 07 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
Description Improper verification of cryptographic signature in Microsoft 365 Admin Center allows an unauthorized attacker to elevate privileges over a network.
Title Microsoft 365 Admin Center Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft 365 Admin Center
Weaknesses CWE-347
CPEs cpe:2.3:a:microsoft:365_admin_center:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft 365 Admin Center
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-08-07T00:53:08.489Z

Reserved: 2026-07-14T21:13:55.100Z

Link: CVE-2026-62873

cve-icon Vulnrichment

Updated: 2026-08-07T00:53:05.097Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-07T01:30:04Z

Weaknesses