CVE-2025-49666

EUVD-2025-20578
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to execute code over a network.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.2 HIGH
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
microsoftCNA
7.2 HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Base Score
CVSS 3.x
EPSS Score
Percentile: 35%
Affected Products (NVD)
VendorProductVersion
microsoftwindows_server_2016
𝑥
< 10.0.14393.8246
microsoftwindows_server_2019
𝑥
< 10.0.17763.7558
microsoftwindows_server_2022
𝑥
< 10.0.20348.3932
microsoftwindows_server_2022_23h2
𝑥
< 10.0.25398.1732
microsoftwindows_server_2025
𝑥
< 10.0.26100.4652
𝑥
= Vulnerable software versions
Windows Releases
Platform
Version
Windows Server 2016
Server Core
Standard
Windows Server 2019
Server Core
Standard
Windows Server 2022
23H2 Server Core
Server Core
Standard
Windows Server 2025
Server Core
Standard