CVE-2026-26156

HIGH

Heap-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code locally.

CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Complexity

LOW

Privileges

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Published: 4/14/2026Modified: 4/24/2026

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