---
id: CVE-2026-62873
title: Microsoft 365 Admin Center Elevation of Privilege Vulnerability
summary: >-
  Improper verification of cryptographic signature in Microsoft 365 Admin Center
  allows an unauthorized attacker to elevate privileges over a network.
severity: critical
cvss: 9.8
cvssVector: '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'
cvssSource: cna
cwe:
  - CWE-347
vendor: Microsoft
product: Microsoft 365 Admin Center
affected:
  - 365_admin_center -
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-08-06T00:00:00+00:00'
published: '2026-08-06'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T19:35:26.717Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-62873'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62873'
    label: Microsoft 365 Admin Center Elevation of Privilege Vulnerability
tags:
  - cve.org
epss: 0.00606
epssPercentile: 0.46761
ingestedAt: '2026-09-08T18:07:34.902Z'
---

## Overview

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

## Affected

- `365_admin_center -`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.