Important CVSS 7.8 EPSS 0.00539 2025-04 archive

Executive Summary

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

Overview

7.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Elevation of Privilege
Released Apr 8 2025
Last Updated Apr 8 2025
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.00539 — 0.41038 percentile
NVD CVSS 7.8 HIGH — matches MSRC

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
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.8

EPSS Score

0.00539
probability of exploitation in the next 30 days
0.41038 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

2 affected products
Product KB Article Severity Impact Restart Required
Azure Stack HCI OS 22H2 5055526 (Security Update) Important Elevation of Privilege Yes
Azure Stack HCI OS 23H2 Release Notes (Security Update) Important Elevation of Privilege Yes

Patches

2 patches
Article Type Restart
5055526 Security Update Yes
Release Notes Security Update Yes

Known Exploits

Acknowledgments

Microsoft Offensive Research & Security Engineering