CVE-2025-49751

Windows Hyper-V Denial of Service Vulnerability

Published Aug 12, 2025 CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Description
Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent network.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-24379 Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent network.
History
Type Values Removed Values Added
First Time appeared Microsoft windows 10 21h2
Microsoft windows 10 22h2
Microsoft windows 11 22h2
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows Server 23h2
CPEs cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_22H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_server_23h2:*:*:*:*:*:*:*:*
Vendors & Products Microsoft windows 10 21h2
Microsoft windows 10 22h2
Microsoft windows 11 22h2
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows Server 23h2
Type Values Removed Values Added
First Time appeared Microsoft windows Server 2019
Microsoft windows Server 2022
Microsoft windows Server 2022 23h2
Microsoft windows Server 2025
CPEs cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
Vendors & Products Microsoft windows Server 2019
Microsoft windows Server 2022
Microsoft windows Server 2022 23h2
Microsoft windows Server 2025
Type Values Removed Values Added
First Time appeared Microsoft
Microsoft hyper-v
Microsoft server
Microsoft windows
Microsoft windows 10
Microsoft windows 10 1607
Microsoft windows 10 1809
Microsoft windows 10 21h2
Microsoft windows 10 22h2
Microsoft windows 11
Microsoft windows 11 22h2
Microsoft windows 11 22h3
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows Server
Microsoft windows Server 2016
Vendors & Products Microsoft
Microsoft hyper-v
Microsoft server
Microsoft windows
Microsoft windows 10
Microsoft windows 10 1607
Microsoft windows 10 1809
Microsoft windows 10 21h2
Microsoft windows 10 22h2
Microsoft windows 11
Microsoft windows 11 22h2
Microsoft windows 11 22h3
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows Server
Microsoft windows Server 2016
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent network.
Title Windows Hyper-V Denial of Service Vulnerability
Weaknesses CWE-820
References
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C'}