CVE-2025-27488HighCVSS 6.7

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

Published
May 31, 2026
Last Modified
—

🔗 CVE IDs covered (1)

📋 Description

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

🎯 Affected products11

  • Windows 10 HLK Version 22H2
  • Windows 10 HLK version 20H2
  • Windows 10 HLK version 21H1
  • Windows 10 HLK version 21H2
  • Windows 11 HLK 22H2
  • Windows 11 HLK 24H2
  • Windows HLK for Windows 10 version 2004
  • Windows HLK for Windows Server 2019
  • Windows HLK for Windows Server 2022
  • Windows HLK for Windows Server 2025
  • Windows HLK, version 1809

✅ Remediation

KBRelease Notes (Security Update) — fixed build 10.1.26100.3478 KBRelease Notes (Security Update) — fixed build 10.1.17763.7010 KBRelease Notes (Security Update) — fixed build 10.1.19041.5609 KBRelease Notes (Security Update) — fixed build 10.1.22621.5040 KBRelease Notes (Security Update) — fixed build 10.1.20348.3330

🔗 References (7)