CVE-2025-48807: Windows Hyper-V Remote Code Execution Vulnerability

Severity: medium (CVSS 6.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-08-12 · updated 2026-06-17
Weakness: CWE-923

Description

Improper restriction of communication channel to intended endpoints in Windows Hyper-V allows an authorized attacker to execute code locally.

Affected products

Microsoft Windows 10 1607: before 10.0.14393.8246 — fixed in 10.0.14393.8246
Microsoft Windows 10: before 10.0.17763.7558 — fixed in 10.0.17763.7558
Microsoft Windows 10: before 10.0.19044.6093 — fixed in 10.0.19044.6093
Microsoft Windows 10: before 10.0.19045.6093 — fixed in 10.0.19045.6093
Microsoft Windows 11: before 10.0.22621.5624 — fixed in 10.0.22621.5624
Microsoft Windows 11: before 10.0.22631.5624 — fixed in 10.0.22631.5624
Microsoft Windows 11: before 10.0.26100.4652 — fixed in 10.0.26100.4652
Microsoft Windows Server 2016: before 10.0.14393.8246 — fixed in 10.0.14393.8246
Microsoft Windows Server 2019: before 10.0.17763.7558 — fixed in 10.0.17763.7558
Microsoft Windows Server 2022: before 10.0.20348.3932 — fixed in 10.0.20348.3932
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): before 10.0.25398.1732 — fixed in 10.0.25398.1732
Microsoft Windows Server 2025: before 10.0.26100.4652 — fixed in 10.0.26100.4652
Microsoft Windows 10 1607: from 10.0.14393.0 before 10.0.14393.8422 — fixed in 10.0.14393.8422
Microsoft Windows 10: from 10.0.17763.0 before 10.0.17763.7792 — fixed in 10.0.17763.7792
Microsoft Windows 10: from 10.0.19044.0 before 10.0.19044.6332 — fixed in 10.0.19044.6332
Microsoft Windows 10: from 10.0.19045.0 before 10.0.19045.6332 — fixed in 10.0.19045.6332
Microsoft Windows 11: from 10.0.22621.0 before 10.0.22621.5909 — fixed in 10.0.22621.5909
Microsoft Windows 11 version 22H3: from 10.0.22631.0 before 10.0.22631.5909 — fixed in 10.0.22631.5909
Microsoft Windows 11: from 10.0.22631.0 before 10.0.22631.5909 — fixed in 10.0.22631.5909
Microsoft Windows 11: from 10.0.26100.0 before 10.0.26100.6584 — fixed in 10.0.26100.6584
Microsoft Windows Server 2016: from 10.0.14393.0 before 10.0.14393.8422 — fixed in 10.0.14393.8422
Microsoft Windows Server 2019: from 10.0.17763.0 before 10.0.17763.7792 — fixed in 10.0.17763.7792
Microsoft Windows Server 2022: from 10.0.20348.0 before 10.0.20348.4171 — fixed in 10.0.20348.4171
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): from 10.0.25398.0 before 10.0.25398.1849 — fixed in 10.0.25398.1849
Microsoft Windows Server 2025: from 10.0.26100.0 before 10.0.26100.6584 — fixed in 10.0.26100.6584

How to fix

Upgrade to a fixed version: Microsoft Windows 10 1607 10.0.14393.8246; Microsoft Windows 10 10.0.17763.7558; Microsoft Windows 10 10.0.19044.6093; Microsoft Windows 10 10.0.19045.6093; Microsoft Windows 11 10.0.22621.5624; Microsoft Windows 11 10.0.22631.5624; Microsoft Windows 11 10.0.26100.4652; Microsoft Windows Server 2016 10.0.14393.8246; Microsoft Windows Server 2019 10.0.17763.7558; Microsoft Windows Server 2022 10.0.20348.3932; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1732; Microsoft Windows Server 2025 10.0.26100.4652. Check the vendor advisory for mitigations.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48807

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