CVE-2025-49751

MEDIUM

Windows 10/11, Server 2016-2025 DoS via Hyper-V Missing Sync

Title source: llm
STIX 2.1

Description

Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent network.

References (1)

Core 1
Core References

Scores

CVSS v3 6.8
EPSS 0.0053
EPSS Percentile 67.3%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-820
Status published
Products (12)
microsoft/windows_10_1607 < 10.0.14393.8330
microsoft/windows_10_1809 < 10.0.17763.7678
microsoft/windows_10_21h2 < 10.0.19044.6216
microsoft/windows_10_22h2 < 10.0.19045.6216
microsoft/windows_11_22h2 < 10.0.22621.5768
microsoft/windows_11_23h2 < 10.0.22631.5768
microsoft/windows_11_24h2 < 10.0.26100.4851
microsoft/windows_server_2016 < 10.0.14393.8330
microsoft/windows_server_2019 < 10.0.17763.7678
microsoft/windows_server_2022 < 10.0.20348.3989
... and 2 more
Published Aug 12, 2025
Tracked Since Feb 18, 2026