Latest cybersecurity reporting from selected sources.

One in six machines still run the old OS as migration stalls and patch deadlines creep closer

Microsoft has released the Windows 10 KB5099539 extended security update, which includes this month's record-breaking July 2026 Patch Tuesday fixes, along with additional security improvements. [...]

Microsoft has released the Windows 10 KB5094127 extended security update, which fixes the June 2026 Patch Tuesday vulnerabilities and adds new functionality to monitor the rollout of updated Secure Boot certificates that replace those expiring this month. [...]

Microsoft has released the Windows 10 KB5087544 extended security update to fix the May 2026 Patch Tuesday vulnerabilities and resolve an issue with the new Remote Desktop warnings. [...]

Microsoft has released the Windows 10 KB5082200 extended security update to fix the April 2026 Patch Tuesday vulnerabilities, including 2 zero-days. [...]

Microsoft has released the Windows 10 KB5078885 extended security update to fix the March 2026 Patch Tuesday vulnerabilities, including 2 zero-days and an issue that prevent some devices from shutting down. [...]

Microsoft has released the Windows 10 KB5075912 extended security update to fix February 2026 Patch Tuesday vulnerabilities, including six zero-days, and continue rolling out replacements for expiring Secure Boot certificates. [...]

Microsoft has released multiple emergency, out-of-band updates for Windows 10, Windows 11, and Windows Server to fix two issues caused by the January Patch Tuesday updates. [...]

Microsoft has released the KB5073724 extended security update to fix the Patch Tuesday security updates, including 3 zero-days and a fix for expiring Secure Boot certificates. [...]

Microsoft this week pushed security updates to fix more than 60 vulnerabilities in its Windows operating systems and supported software, including at least one zero-day bug that is already being exploited. Microsoft also fixed a glitch that prevented some Windows 10 users from taking advantage of an extra year of security updates, which is nice because the zero-day flaw and other critical weaknesses patched today affect all versions of Windows, including Windows 10.

With the first Patch Tuesday following Windows 10's end of support approaching next week, users who continue to run the operating system should enroll in the Extended Security Updates (ESU) program to remain protected against newly discovered security vulnerabilities. [...]

Microsoft has fixed over 170 CVEs in October’s Patch Tuesday, including six zero-day vulnerabilities

Microsoft today released software updates to plug a whopping 172 security holes in its Windows operating systems, including at least three vulnerabilities that are already being actively exploited. October's Patch Tuesday also marks the final month that Microsoft will ship security updates for Windows 10 systems. If you're running a Windows 10 PC and you're unable or unwilling to migrate to Windows 11, read on for other options.

October 2025's enormous Patch Tuesday offers plenty of nightmares for admins, including actively exploited zero-days and insidious high-severity privilege-escalation bugs — and it spells curtains for Windows 10 updates.

In what marks the end of an era, Microsoft has released the Windows 10 KB5066791 cumulative update, the final free update for the operating system as it reaches the end of its support lifecycle. [...]

Microsoft has reminded customers today that Windows 10 has reached the end of support and will no longer receive patches for newly discovered security vulnerabilities. [...]

A novel way to encourage upgrades? Microsoft would never stoop so low Patch Tuesday Patch Tuesday has arrived, and Microsoft has revealed one flaw in its products under active exploitation and 11 critical issues in its code to fix.…

A Confused Update Process Reinstalled Old, Exploitable Windows 10 ComponentsMicrosoft has issued a slew of software updates to patch numerous flaws, including three zero-day vulnerabilities that are already being exploited via in-the-wild attacks. Another fix addresses a prior update that inadvertently reintroduced vulnerable components to Windows 10.

CISA wants you to leap on Citrix and Ivanti issues. Adobe, Intel, SAP also bid for patching priorities Patch Tuesday Another Patch Tuesday has dawned, as usual with the unpleasant news that there are pressing security weaknesses and blunders to address.…

The KB5035849 cumulative update released during today's Patch Tuesday fails to install on Windows 10 and Windows Server systems with 0xd0000034 errors. [...]