# CVE-2025-27489

## Summary

- **CVE ID:** CVE-2025-27489
- **Severity:** HIGH
- **CVSS Score:** 7.8 (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)
- **CWE:** CWE-20
- **Published:** Apr 8, 2025
- **Last Modified:** Aug 10, 2026

## Description

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

## Affected Products

- Microsoft — Azure Stack HCI OS (10.0.25398.0)
- Microsoft — Azure Stack OS HCI (10.0.20349.0)

## References

- [CNA](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27489)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.61%
- **EPSS Percentile:** 47.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._