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Critical Microsoft Windows Multiple Vulnerabilities CVSS 9.8

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Summary

CERT-Bund issued advisory WID-SEC-2026-1104 detailing critical multiple vulnerabilities in Microsoft Windows products with a CVSS Base Score of 9.8 (critical) and Temporal Score of 8.5 (high). Affected products include Windows Server 2012 through 2025 and Windows 10 versions 1607 through 22H2 and Windows 11 versions 23H2 through 26H1, along with Microsoft Windows Admin Center. An attacker could exploit these vulnerabilities to achieve remote code execution, privilege escalation, information disclosure, security feature bypass, and denial of service attacks.

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What changed

CERT-Bund published security advisory WID-SEC-2026-1104 identifying multiple critical vulnerabilities in Microsoft Windows operating systems and server products spanning numerous versions. The vulnerabilities carry a CVSS Base Score of 9.8 (critical) and enable attackers to execute arbitrary code remotely, escalate privileges, disclose sensitive information, bypass security controls, and conduct denial of service attacks. The affected product range includes Windows Server 2012 through 2025, Windows 10 versions from 1607 through 22H2, Windows 11 versions from 23H2 through 26H1, and Microsoft Windows Admin Center.

Organizations running any affected Windows products should prioritize immediate patching using vendor-released security updates. Given the critical severity rating and the availability of remote attack vectors, all Windows deployments should be assessed and patched without delay. Security teams should subscribe to CVE feeds and Microsoft's security update notifications to track related vulnerability disclosures and ensure comprehensive remediation coverage.

What to do next

  1. Apply vendor security patches and updates immediately to all affected Windows systems
  2. Monitor for new CVE information and vendor guidance
  3. Review affected product list and identify vulnerable deployments in your environment

Archived snapshot

Apr 15, 2026

GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.

[WID-SEC-2026-1104] Microsoft Windows: Mehrere Schwachstellen CVSS Base Score 9.8 (kritisch) CVSS Temporal Score 8.5 (hoch) Remoteangriff ja Datum 14.04.2026 Stand 15.04.2026 Mitigation ja

Betroffene Systeme

Betriebssystem

  • Windows

Produktbeschreibung

Windows ist ein Betriebssystem von Microsoft.

Produkte

14.04.2026
- Microsoft Windows Remote Desktop client for Desktop

  • Microsoft Windows App Client for Desktop

  • Microsoft Windows Server 2012

  • Microsoft Windows Server 2012 R2

  • Microsoft Windows Server 2016

  • Microsoft Windows 10 Version 1607

  • Microsoft Windows 10 Version 1809

  • Microsoft Windows Server 2019

  • Microsoft Windows Server 2022

  • Microsoft Windows 10 Version 21H2

  • Microsoft Windows 10 Version 22H2

  • Microsoft Windows 11 Version 23H2

  • Microsoft Windows Server 2022 23H2 Edition

  • Microsoft Windows 11 Version 24H2

  • Microsoft Windows Server 2025

  • Microsoft Windows 11 Version 25H2

  • Microsoft Windows 11 version 26H1

  • Microsoft Windows Admin Center

Angriff

Angriff

Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows Produkten ausnutzen, um seine Privilegien zu erhöhen, um Informationen offenzulegen, um Sicherheitsvorkehrungen zu umgehen, um beliebigen Programmcode auszuführen, um falsche Informationen darzustellen, um einen Denial of Service Angriff durchzuführen, und um einen nicht näher spezifizierten Angriff durchzuführen. CVE Informationen Versionshistorie Feedback zum Advisory geben

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Data Privacy & Cybersecurity

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Classification

Agency
CERT-Bund
Published
April 14th, 2026
Instrument
Guidance
Legal weight
Non-binding
Stage
Final
Change scope
Substantive
Document ID
WID-SEC-2026-1104

Who this affects

Applies to
Technology companies Organizations
Industry sector
5112 Software & Technology
Activity scope
Vulnerability patching Remote code execution mitigation Security update deployment
Geographic scope
United States US

Taxonomy

Primary area
Cybersecurity
Operational domain
IT Security
Compliance frameworks
NIST CSF
Topics
Cybersecurity Data Privacy

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