CVE-2025-27488

Microsoft Windows Hardware Lab Kit (HLK) Elevation of Privilege Vulnerability

View on CVE.org

Published May 13, 2025 CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed

Description

Use of hard-coded credentials in Windows Hardware Lab Kit allows an authorized attacker to elevate privileges locally.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Microsoft

Windows 10 HLK version 20H2

affected

Version	Status	Constraints
`1.0.0`	affected	< 10.1.19041.5609

Microsoft

Windows 10 HLK version 21H1

affected

Version	Status	Constraints
`1.0.0`	affected	< 10.1.19041.5609

Microsoft

Windows 10 HLK version 21H2

affected

Version	Status	Constraints
`1.0.0`	affected	< 10.1.19041.5609

Microsoft

Windows 10 HLK Version 22H2

affected

Version	Status	Constraints
`1.0.0`	affected	< 10.1.19041.5609

Microsoft

Windows 11 HLK 22H2

affected

Version	Status	Constraints
`1.0.0`	affected	< 10.1.22621.5040

Microsoft

Windows 11 HLK 24H2

affected

Version	Status	Constraints
`1.0.0`	affected	< 10.1.26100.3478

Microsoft

Windows HLK for Windows 10 version 2004

affected

Version	Status	Constraints
`1.0.0`	affected	< 10.1.19041.5609

Microsoft

Windows HLK for Windows Server 2019

affected

Version	Status	Constraints
`1.0.0`	affected	< 10.1.17763.7010

Microsoft

Windows HLK for Windows Server 2022

affected

Version	Status	Constraints
`1.0.0`	affected	< 10.1.20348.3330

Microsoft

Windows HLK for Windows Server 2025

affected

Version	Status	Constraints
`1.0.0`	affected	< 10.1.26100.3478

Microsoft

Windows HLK, version 1809

affected

Version	Status	Constraints
`1.0.0`	affected	< 10.1.17763.7010

Configuration 1 [-]

AND

cpe:2.3:a:microsoft:windows_hardware_lab_kit:*:*:*:*:*:*:*:*

OR	cpe:2.3:o:microsoft:windows_10_1809:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*

Configuration 2 [-]

AND

cpe:2.3:a:microsoft:windows_hardware_lab_kit:*:*:*:*:*:*:*:*

OR	cpe:2.3:o:microsoft:windows_10_2004:-:::::::*
	cpe:2.3:o:microsoft:windows_10_20h2:-:::::::*
	cpe:2.3:o:microsoft:windows_10_21h1:-:::::::*
	cpe:2.3:o:microsoft:windows_10_21h2:-:::::::*
	cpe:2.3:o:microsoft:windows_10_22h2:-:::::::*

Configuration 3 [-]

AND

cpe:2.3:a:microsoft:windows_hardware_lab_kit:*:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*

Configuration 4 [-]

AND

cpe:2.3:a:microsoft:windows_hardware_lab_kit:*:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows_11_22h2:-:*:*:*:*:*:*:*

Configuration 5 [-]

AND

cpe:2.3:a:microsoft:windows_hardware_lab_kit:*:*:*:*:*:*:*:*

OR	cpe:2.3:o:microsoft:windows_11_24h2:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2025:-:::::::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2025-14437	Use of hard-coded credentials in Windows Hardware Lab Kit allows an authorized attacker to elevate privileges locally.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.401% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27488

History

Feb 13, 2026 7:30 PM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Microsoft windows 10 Hlk 1809 Microsoft windows 10 Hlk 2004 Microsoft windows 10 Hlk 20h2 Microsoft windows 10 Hlk 21h1 Microsoft windows 10 Hlk 21h2 Microsoft windows 10 Hlk 22h2 Microsoft windows 11 Hlk 22h2 Microsoft windows 11 Hlk 24h2 Microsoft windows Server Hlk 2019 Microsoft windows Server Hlk 2022 Microsoft windows Server Hlk 2025
CPEs		cpe:2.3:o:microsoft:windows_10_hlk_1809:::::::: cpe:2.3:o:microsoft:windows_10_hlk_2004:::::::: cpe:2.3:o:microsoft:windows_10_hlk_20H2:::::::: cpe:2.3:o:microsoft:windows_10_hlk_21H1:::::::: cpe:2.3:o:microsoft:windows_10_hlk_21H2:::::::: cpe:2.3:o:microsoft:windows_10_hlk_22H2:::::::: cpe:2.3:o:microsoft:windows_11_hlk_22H2:::::::: cpe:2.3:o:microsoft:windows_11_hlk_24H2:::::::: cpe:2.3:o:microsoft:windows_server_hlk_2019:::::::: cpe:2.3:o:microsoft:windows_server_hlk_2022:::::::: cpe:2.3:o:microsoft:windows_server_hlk_2025::::::::
Vendors & Products		Microsoft windows 10 Hlk 1809 Microsoft windows 10 Hlk 2004 Microsoft windows 10 Hlk 20h2 Microsoft windows 10 Hlk 21h1 Microsoft windows 10 Hlk 21h2 Microsoft windows 10 Hlk 22h2 Microsoft windows 11 Hlk 22h2 Microsoft windows 11 Hlk 24h2 Microsoft windows Server Hlk 2019 Microsoft windows Server Hlk 2022 Microsoft windows Server Hlk 2025

May 19, 2025 6:45 PM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Microsoft Microsoft windows 10 1809 Microsoft windows 10 2004 Microsoft windows 10 20h2 Microsoft windows 10 21h1 Microsoft windows 10 21h2 Microsoft windows 10 22h2 Microsoft windows 11 22h2 Microsoft windows 11 24h2 Microsoft windows Hardware Lab Kit Microsoft windows Server 2019 Microsoft windows Server 2022 Microsoft windows Server 2025
CPEs		cpe:2.3:a:microsoft:windows_hardware_lab_kit:::::::: cpe:2.3:o:microsoft:windows_10_1809:-:::::::* cpe:2.3:o:microsoft:windows_10_2004:-:::::::* cpe:2.3:o:microsoft:windows_10_20h2:-:::::::* cpe:2.3:o:microsoft:windows_10_21h1:-:::::::* cpe:2.3:o:microsoft:windows_10_21h2:-:::::::* cpe:2.3:o:microsoft:windows_10_22h2:-:::::::* cpe:2.3:o:microsoft:windows_11_22h2:-:::::::* cpe:2.3:o:microsoft:windows_11_24h2:-:::::::* cpe:2.3:o:microsoft:windows_server_2019:-:::::::* cpe:2.3:o:microsoft:windows_server_2022:-:::::::* cpe:2.3:o:microsoft:windows_server_2025:-:::::::*
Vendors & Products		Microsoft Microsoft windows 10 1809 Microsoft windows 10 2004 Microsoft windows 10 20h2 Microsoft windows 10 21h1 Microsoft windows 10 21h2 Microsoft windows 10 22h2 Microsoft windows 11 22h2 Microsoft windows 11 24h2 Microsoft windows Hardware Lab Kit Microsoft windows Server 2019 Microsoft windows Server 2022 Microsoft windows Server 2025

May 13, 2025 7:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

May 13, 2025 5:15 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		Use of hard-coded credentials in Windows Hardware Lab Kit allows an authorized attacker to elevate privileges locally.
Title		Microsoft Windows Hardware Lab Kit (HLK) Elevation of Privilege Vulnerability
Weaknesses		CWE-798
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27488
Metrics		cvssV3_1 `{'score': 6.7, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}`

Subscriptions

Microsoft Windows 10 1809 Windows 10 2004 Windows 10 20h2 Windows 10 21h1 Windows 10 21h2 Windows 10 22h2 Windows 10 Hlk 1809 Windows 10 Hlk 2004 Windows 10 Hlk 20h2 Windows 10 Hlk 21h1 Windows 10 Hlk 21h2 Windows 10 Hlk 22h2 Windows 11 22h2 Windows 11 24h2 Windows 11 Hlk 22h2 Windows 11 Hlk 24h2 Windows Hardware Lab Kit Windows Server 2019 Windows Server 2022 Windows Server 2025 Windows Server Hlk 2019 Windows Server Hlk 2022 Windows Server Hlk 2025

Weaknesses

CWE-798

Sources

CVE record Updated: Feb 13, 2026, 7:21 PM

Status: PUBLISHED
Assigner: microsoft
Published: May 13, 2025, 4:58 PM
Updated: Feb 13, 2026, 7:21 PM
Reserved: Feb 26, 2025, 2:42 PM

View source JSON

Vulnrichment Updated: May 13, 2025, 6:13 PM

Updated: May 13, 2025, 6:13 PM

NVD Updated: Jun 17, 2026, 9:03 AM

Status: Analyzed
Published: May 13, 2025, 5:15 PM
Modified: Jun 17, 2026, 9:03 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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