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Microsoft Patch Tuesday Addresses 112 Defects, Including One Actively Exploited Zero-Day

Summary by CyberScoop
Microsoft’s first security update of 2026 addressed 112 vulnerabilities affecting its products and underlying systems, including one actively exploited zero-day in Desktop Window Manager.  The company’s latest Patch Tuesday update marks the second consecutive month with no critical vulnerabilities disclosed. The batch of patches also contains more than 110 CVEs for the second January in a row.  The zero-day vulnerability — CVE-2026-20805 — is an…
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The security patch released by Microsoft fixes the CVE-2026-20805 vulnerability that was being exploited by hackers

·Los Angeles, United States
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Global Security Mag OnlineGlobal Security Mag Online
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Global Security Mag OnlineGlobal Security Mag Online

Microsoft will now separate Windows Server 2025 updates into a separate fix (KB). With the introduction of new AI-based features, the size of many Windows 11 cumulative updates has greatly increased. This separation will reduce the size of cumulative updates by excluding features that do not apply to server environments. Actively exploited Microsoft Vulnerability Disclosure of Information – Desktop Window Manager (CVE-2026-20805): Microsoft has …

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The cumulative update KB5074109, published just two days ago by Microsoft in silence, marks the first large patch of Windows 11 this year and elevates the system to compilations 26200.7623 in branch 25H2 and 26100.7623 in 24H2. We are not facing a showy update, that is true, there are no great “titlers”, but yes to one of those deliveries that adjust internal foundations, strengthen security and leave clear clues to where Microsoft is pushing th…

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CyberScoop broke the news in Washington, United States on Tuesday, January 13, 2026.
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