May 2025 Patch TuesdayMSRC-2025-05-windows-release-notesNormal patch window

Microsoft · MSRC-2025-05-windows-release-notes

Linked CVE review

Deploy Microsoft Windows update for Windows 11 HLK 24H2

Linked CVEs
1
Confirmed exploited
0
PoC or lab evidence
0
Maximum CVSS
6.7
Evidence is kept separate

Confirmed exploitation, public exploit material, EPSS probability and CVSS severity answer different questions. “No confirmation recorded” means the checked sources do not currently confirm exploitation. It is not proof that exploitation has not occurred.

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1 of 1 linked CVEs shown
Confirmed exploitedCVSS above 9.0
CVE and descriptionSeverityExploit realityForecast and accessRemediation
CVE-2025-27488 Scheduled assessment
Microsoft Windows Hardware Lab Kit (HLK) Elevation of Privilege Vulnerability

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

6.7 · CVSS 3.1 · MediumSource: CNANo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 0.40% · 32.3th percentileForecast date: 2026-10-09LOCAL · LOW complexity · HIGH privileges · NONE user interactionScheduledMedium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.Awaiting fix. No fixed version is explicitly recorded in the structured CVE data.