CVE-2026-66804 :: Enginsight Vulnerability Database

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

Base Score

CVSS 3.x

EPSS Score

Percentile: 20.05%

Affected Products (NVD)

Vendor	Product	Version
microsoft	windows_10_22h2	𝑥 < 10.0.19045.7663
microsoft	windows_11_24h2	𝑥 < 10.0.26100.9106
microsoft	windows_11_25h2	𝑥 < 10.0.26200.9106
microsoft	windows_11_26h1	𝑥 < 10.0.28000.2704

𝑥

= Vulnerable software versions

Windows Releases

Platform

Version

Windows 10

22H2 (arm64, x64, x86)

Windows 11

24H2 (arm64, x64)	KB5121003
25H2 (arm64, x64)	KB5121003
26H1 (arm64, x64)	KB5121000

Common Weakness Enumeration

CWE-284 - Improper Access Control
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Vulnerability Media Exposure

[GERMAN] Microsoft Windows Produkte: Mehrere Schwachstellen
Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows Server 2012, Microsoft Windows Server 2012 R2, Microsoft Windows Server 2016, Microsoft Windows 10, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Exchange, Microsoft Windows 11, Microsoft Windows Server 2025 und Microsoft Windows ausnutzen, um beliebigen Programmcode auszuführen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen, und um Sicherheitsvorkehrungen zu umgehen.
Published: 2026-08-11T22:00:00+00:00

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66804