CVE-2026-87705

7.4High

Published 13 Oct 2026 · NVD status: Undergoing Analysis

7.4High

Attack vector: Adjacent network
Complexity: Low
Privileges needed: None
User interaction: None
Impact: High impact on confidentiality
Weakness: CWE-940

The AI triage for this one isn't ready yet. Check back in a few minutes; the full NVD record is below in the meantime.

CVSS v3.1 · CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Ad · In-content banner

NVD 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.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-87705

Source: nvd.nist.gov/vuln/detail/CVE-2026-87705