CVE-2026-87705

HighCVSS 7.4/10Last modified Oct 16, 2026

Description

Improper verification of source of a communication channel in Windows Hyper-V allows an unauthorized attacker to bypass a security feature over an adjacent network.

Metrics

CVSS 3.1 7.4/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Weakness enumeration

CWE-940

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Oct 13, 2026
Last modified
Oct 16, 2026
NVD status
Undergoing Analysis

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CVE-2026-87705: High severity, CVSS 7.4 | Vulnix