CVE-2026-42991 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	7.8 HIGH	LOCAL	HIGH	LOW	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 6%

Affected Products (NVD)

Vendor	Product	Version
microsoft	windows_10_1809	𝑥 < 10.0.17763.8880
microsoft	windows_10_1809	𝑥 < 10.0.17763.8880
microsoft	windows_10_21h2	𝑥 < 10.0.19044.7417
microsoft	windows_10_21h2	𝑥 < 10.0.19044.7417
microsoft	windows_10_21h2	𝑥 < 10.0.19044.7417
microsoft	windows_10_22h2	𝑥 < 10.0.19045.7417
microsoft	windows_10_22h2	𝑥 < 10.0.19045.7417
microsoft	windows_10_22h2	𝑥 < 10.0.19045.7417
microsoft	windows_11_23h2	𝑥 < 10.0.22631.7219
microsoft	windows_11_23h2	𝑥 < 10.0.22631.7219
microsoft	windows_11_24h2	𝑥 < 10.0.26100.8655
microsoft	windows_11_24h2	𝑥 < 10.0.26100.8655
microsoft	windows_11_25h2	𝑥 < 10.0.26200.8655
microsoft	windows_11_25h2	𝑥 < 10.0.26200.8655
microsoft	windows_11_26h1	𝑥 < 10.0.28000.2269
microsoft	windows_11_26h1	𝑥 < 10.0.28000.2269
microsoft	windows_server_2019	𝑥 < 10.0.17763.8880
microsoft	windows_server_2022	𝑥 < 10.0.20348.5256
microsoft	windows_server_2025	𝑥 < 10.0.26100.32995

𝑥

= Vulnerable software versions

Windows Releases

Platform

Version

Windows 10

1809 (x64, x86)	KB5094123
21H2 (arm64, x64, x86)	KB5094127
22H2 (arm64, x64, x86)	KB5094127

Windows 11

23H2 (arm64, x64)	KB5093998
24H2 (arm64, x64)	KB5094126
25H2 (arm64, x64)	KB5094126
26H1 (arm64, x64)	KB5095051

Windows Server 2019

Server Core	KB5094123
Standard	KB5094123

Windows Server 2022

Server Core	KB5094128
Standard	KB5094128

Windows Server 2025

Server Core	KB5094125
Standard	KB5094125

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-2026-42991