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Vulnerability details

CVE-2026-47652

Microsoft Windows 11Microsoft Windows Server

Windows Hyper-V Remote Code Execution Vulnerability

CVSS 3.1
8.2High

Official description

Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.

CVSS scores

ScoreVersionSourceVector
8.2High 3.1 CVEProject cvelistV5 (CNA) (microsoft) CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

Affected products

VendorProductVersionsSource
Microsoft Windows 11 Version 24H2 10.0.26100.0 ≤ v < 10.0.26100.8655 CVEProject cvelistV5 (CNA)
Microsoft Windows 11 Version 25H2 10.0.26200.0 ≤ v < 10.0.26200.8655 CVEProject cvelistV5 (CNA)
Microsoft Windows 11 version 23H2 10.0.22631.0 ≤ v < 10.0.22631.7219 CVEProject cvelistV5 (CNA)
Microsoft Windows 11 version 23H2 10.0.22631.0 ≤ v < 10.0.22631.7219 CVEProject cvelistV5 (CNA)
Microsoft Windows 11 version 26H1 10.0.28000.0 ≤ v < 10.0.28000.2269 CVEProject cvelistV5 (CNA)
Microsoft Windows Server 2022 10.0.20348.0 ≤ v < 10.0.20348.5256 CVEProject cvelistV5 (CNA)
Microsoft Windows Server 2025 10.0.26100.0 ≤ v < 10.0.26100.32995 CVEProject cvelistV5 (CNA)
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 ≤ v < 10.0.26100.32995 CVEProject cvelistV5 (CNA)

References and advisories

1
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Details

Published
2026-06-09
Last updated
2026-09-24
State
Published
Assigner (CNA)
microsoft

Exploit prediction (EPSS)

0.34%
Probability of exploitation in 30 days
27.7%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
None
Technical impact
Total

Weaknesses (CWE)

  • CWE-122
    Heap-based Buffer Overflow