Secure Boot
The latest Secure Boot coverage — news, analysis, and updates from the WindowsNews.AI desk.
Microsoft’s June 2026 Patch Fixes Secure Boot Bypass Threatening VSM Secrets
Microsoft addressed a serious security feature bypass in Windows Secure Boot with the June 2026 Patch Tuesday updates. Tracked as CVE-2026-45654, the vulnerability carries an Important severity...
Windows 10 June 2026 ESU Patch KB5094127 Revokes Secure Boot, Fixes 49 Flaws
Microsoft rolled out the June 2026 Patch Tuesday cumulative update for Windows 10 22H2 systems covered by the Extended Security Updates (ESU) program. Labeled KB5094127, the update pushes eligible...
CVE-2026-48578: Patch Tuesday Fix Closes Secure Boot Bypass for Bootkit Attacks
Microsoft dropped its June 2026 Patch Tuesday updates, and one vulnerability stands out: CVE-2026-48578. This Important-rated Secure Boot security feature bypass lets a highly privileged local...
CVE-2026-48576: Microsoft Secure Boot Bypass Threatens Boot Chain
Microsoft has officially disclosed a new Secure Boot security feature bypass vulnerability, tracked as CVE-2026-48576, through the MSRC Security Update Guide in June 2026. The advisory details a flaw...
Microsoft Patches CVE-2026-48575 Secure Boot Bypass in June 2026 Update
Microsoft has patched a critical Secure Boot bypass vulnerability tracked as CVE-2026-48575, issuing fixes in its June 2026 Patch Tuesday update. The flaw, rated Important, allows a locally...
June 2026 Windows Update Fixes CVE-2026-48573 Secure Boot Bypass
Microsoft's June 2026 Patch Tuesday rollout includes a fix for a Secure Boot feature bypass identified as CVE-2026-48573. The vulnerability, rated Important, could allow an attacker with local access...
CVE-2026-48568 Windows Secure Boot Bypass Fixed in June 2026 Patch Tuesday
Microsoft disclosed CVE-2026-48568 on June 9, 2026, an Important-rated Secure Boot security feature bypass that allows a local authenticated attacker to circumvent critical boot-time protections. The...
Microsoft Confirms CVE-2026-8863 UEFI Secure Boot Bypass: What Windows Users Need to Know
Microsoft officially acknowledged a critical vulnerability in the UEFI Secure Boot feature on June 9, 2026, with the publication of CVE-2026-8863 in its Security Update Guide. The advisory, still...
CVE-2026-45588 Secure Boot Bypass: Deploy June 2026 OS Update and UEFI Revocation List
A critical Secure Boot bypass vulnerability, assigned CVE-2026-45588, landed on Microsoft’s radar with the release of the June 2026 Patch Tuesday updates. Published on June 9, the advisory ranks...
Windows 10's June 2026 Patch Is a Crucial Secure Boot Stopgap: Act Before June 24
Microsoft shipped Windows 10 KB5094127 on June 9, 2026, bringing build 19045.7417 to version 22H2 ESU systems and build 19044.7417 to 21H2/LTSC 2021. It’s a seemingly modest collection of File...
Windows 11’s June Update Adds a Stealth CPU Boost — and Three More Features You Should Know About
Microsoft’s June Patch Tuesday release for Windows 11 isn’t just a bag of security fixes. KB5094126, now rolling out to versions 25H2 and 24H2, quietly begins enabling a set of experience-focused...
KB5095185: Microsoft’s Quiet Windows 11 Update Signals Urgent Secure Boot Expiry
On June 9, 2026, Microsoft released KB5095185, a routine-looking Safe OS Dynamic Update for Windows 11 version 26H1. The update tunes the recovery and setup environment, but tucked inside is a stark...