CVE-2025-27489 Azure Local Elevation of Privilege Vulnerability

High 7.8 Published Updated

An authorized attacker can elevate privileges locally on Azure Local due to improper input validation, requiring a patch.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-27489?

CVE-2025-27489 is a high-severity vulnerability in Microsoft Azure Stack HCI OS, published on 8 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper input validation in Azure Local allows an authorized attacker to elevate privileges locally.

Weakness: CWE-20

Which versions are affected by CVE-2025-27489?

It affects 2 products.

Products include Microsoft Azure Stack Hci 22h2, Microsoft Azure Stack Hci 23h2.

How do I fix CVE-2025-27489?

No fix has been published for CVE-2025-27489 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-27489 being exploited?

There is no known exploitation of CVE-2025-27489 in the wild and no public exploit code.

Sources

Also known as GHSA-82xw-6f7x-r595.

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