High severity7.4NVD Advisory· Published Oct 13, 2026· Updated Oct 13, 2026

CVE-2026-87705

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.

Affected products

Microsoft/Windows Hyper-Vllm-fuzzy

Patches

Vulnerability mechanics

References

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

News mentions

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