CVE-2026-83766

Published: Oct 13, 2026Modified: Oct 16, 2026

4.2

Vector

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

Exploitability: 0.5 / Impact: 3.6

Source: secure@microsoft.com (Secondary)

Description

Incorrect authorization in Windows Hyper-V allows an authorized attacker to bypass a security feature over an adjacent network.

Related CWEs

Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83766

Source: secure@microsoft.com

Timeline

No history available yet.