MSRC-CVE-2025-21396 — Microsoft Account Elevation of Privilege Vulnerability

Summary

Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited. Customer action: Not required.

Details

Why are there no links to an update or instructions with steps that must be taken to protect from this vulnerability?
This vulnerability has already been fully mitigated by Microsoft. There is no action for users of this service to take. The purpose of this CVE is to provide further transparency.
Please see Toward greater transparency: Unveiling Cloud Service CVEs for more information.

Vulnerabilities 1

High 8.2

CVE-2025-21396

Microsoft Account Elevation of Privilege Vulnerability

Missing authorization in Microsoft Account allows an unauthorized attacker to elevate privileges over a network.

Microsoft Microsoft Account

Jan 29, 2025

Revision history

2025-02-06 #2
Updated one or more CVSS scores for the affected products. This is an informational change only.
2025-01-29 #1
Information published.

References

CVE-2025-21396 Microsoft Account Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21396
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss