Find notable cyber news and cases, enriched with sources, timelines, and signals.
Home Watchlists Beta Browse News Feed Stats About Contact

Windows 10 KB5075912 February 2026 Patch Tuesday update

Security Patch Release
First reported
Last updated
Happening score
H score 26
2 unique sources, 2 articles

Summary

Hide ▲

Microsoft released Windows 10 KB5075912 for February 2026 Patch Tuesday, delivering security fixes for 58 vulnerabilities including six actively exploited zero-days. The update also continues the phased replacement of expiring Secure Boot certificates on targeted systems. It applies to Windows 10 Enterprise LTSC and devices enrolled in the ESU program. The rollout matters because expired certificates could let attackers bypass Secure Boot protections.

Related Happenings

Microsoft extends Windows 10 ESU consumer coverage through October 2027

Security Tool/Service
H score11 First: 25.06.2026 21:29 Last: 25.06.2026 21:29 Sources 1

About this happening: **Microsoft** quietly extended the **Windows 10 Extended Security Updates (ESU)** program for **personal devices** by **one additional year**, keeping critical security update cov...

Open Happening

CERT/CC UEFI DBX mitigation for vendor-signed applications

Advisory/Mitigation
H score28 First: 19.06.2026 21:33 Last: 19.06.2026 21:33 Sources 1

About this happening: **CERT/CC** issued mitigation guidance to apply **UEFI Forbidden Signature Database (DBX)** updates, reducing **Secure Boot bypass** risk for affected vendor-signed **UEFI applica...

Open Happening

Windows 10 KB5094127 extended security update

Security Patch Release
H score10 First: 09.06.2026 21:35 Last: 09.06.2026 21:35 Sources 1

About this happening: Microsoft released **Windows 10 KB5094127** for **Windows 10 Enterprise LTSC** and **ESU-enrolled devices**, delivering the **June 2026 Patch Tuesday** security fixes and extendin...

Open Happening

Windows BitLocker YellowKey mitigation guidance (CVE-2026-45585)

Advisory/Mitigation
H score32 First: 20.05.2026 10:31 Last: 20.05.2026 10:31 Sources 1

About this happening: **Windows BitLocker** **YellowKey** (**CVE-2026-45585**) moved from interim mitigation to patch status after **Microsoft** fixed it in **June 2026 Patch Tuesday**. The **Windows R...

Latest development: 10.06.2026 12:57

On Tuesday, Microsoft fixed YellowKey (CVE-2026-45585) as part of its June 2026 Patch Tuesday updates and shared mitigation measures for the Windows Recovery Environment backdoor. The flaw affects unpatched Windows 11 and Windows Server 2022/2025 systems and can let attackers with physical access bypass BitLocker protection on targeted devices.

Open Happening

Microsoft Windows 11 KB5089549 cumulative update

Security Patch Release
H score19 First: 18.05.2026 11:33 Last: 18.05.2026 11:33 Sources 1

About this happening: Microsoft's **KB5089549** **Windows 11** security update is failing to install on some systems, forcing affected devices to roll back during reboot. The problem is tied to a nearl...

Open Happening

Timeline

  1. 10.02.2026 21:06 3 articles · 4mo ago

    Microsoft releases Windows 10 KB5075912

    Mitigation Patch Update

    Microsoft released Windows 10 KB5075912 for Windows 10 Enterprise LTSC and ESU-enrolled devices, delivering security and bug fixes for 58 vulnerabilities including six actively exploited zero-day flaws, updating systems to build 19045.6937 or 19044.6937, resolving a shutdown or hibernation issue tied to System Guard Secure Launch and Virtual Secure Mode (VSM), and beginning a phased rollout of replacement Secure Boot certificates ahead of their June 2026 expiration.

    Show sources
    Open in new tab