CVE-2026-66802 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	8.1 HIGH	NETWORK	HIGH	NONE	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 43.12%

Affected Products (NVD)

Vendor	Product	Version
microsoft	windows_10_1809	𝑥 < 10.0.17763.9121
microsoft	windows_11_26h1	𝑥 < 10.0.28000.2704
microsoft	windows_server_2019	𝑥 < 10.0.17763.9121
microsoft	windows_server_2022	𝑥 < 10.0.20348.5440
microsoft	windows_server_2025	𝑥 < 10.0.26100.33222

𝑥

= Vulnerable software versions

Windows Releases

Platform

Version

Windows 10

1809 (x64, x86)

Windows 11

26H1 (arm64, x64)

Windows Server 2019

Server Core	KB5120238
Standard	KB5120238

Windows Server 2022

Server Core	KB5120242
Standard	KB5120242

Windows Server 2025

Server Core	KB5120233
Standard	KB5120233

Common Weakness Enumeration

CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66802