Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.

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Windows 11 22h3 Subscribe
Windows 11 23h2 Subscribe
Windows 11 23h2 Subscribe
Windows Server 2022 Subscribe
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 13 May 2026 10:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 13 May 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft windows 11 22h3
Microsoft windows 11 23h2
Vendors & Products Microsoft windows 11 22h3
Microsoft windows 11 23h2

Tue, 12 May 2026 17:30:00 +0000

Type Values Removed Values Added
Description Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.
Title Windows Hyper-V Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft windows 11 23h2
Microsoft windows Server 2022
Weaknesses CWE-416
CPEs cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows 11 23h2
Microsoft windows Server 2022
References
Metrics cvssV3_1

{'score': 9.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-05-13T17:59:21.786Z

Reserved: 2026-04-13T00:27:50.798Z

Link: CVE-2026-40402

cve-icon Vulnrichment

Updated: 2026-05-13T09:58:33.094Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-12T18:17:18.000

Modified: 2026-05-13T15:34:52.573

Link: CVE-2026-40402

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-13T10:00:10Z

Weaknesses