CVE-2025-27489: Azure Local Elevation of Privilege Vulnerability

7.8 CVSS

Description

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

Classification

CVE ID: CVE-2025-27489

CVSS Base Severity: HIGH

CVSS Base Score: 7.8

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Problem Types

CWE-20: Improper Input Validation

Affected Products

Vendor: Microsoft, Microsoft

Product: Azure Stack OS HCI, Azure Stack HCI OS

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.07% (probability of being exploited)

EPSS Percentile: 22.94% (scored less or equal to compared to others)

EPSS Date: 2025-04-18 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-27489
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27489

Timeline