patch tuesday

Microsoft’s May 12, 2026 Patch Tuesday fixes CVE-2026-41096, a critical Windows DNS Client remote code execution vulnerability rated CVSS 9.8 that affects supported Windows client and server systems and can be triggered over the network without authentication or user interaction. That is the dry...

Microsoft updated Windows 11 version 26H1 on May 12, 2026, with cumulative update KB5089548, moving the hardware-specific branch to OS Build 28000.2113 for selected new devices rather than existing Windows 11 PCs. That distinction is the story. The update itself is ordinary Patch Tuesday...

Microsoft released KB5087544 on May 12, 2026, for Windows 10 Enterprise LTSC 2021, Windows 10 IoT Enterprise LTSC 2021, and eligible Extended Security Updates systems, fixing May Patch Tuesday security flaws while correcting Remote Desktop warning behavior and Secure Boot reporting. The update...

Microsoft released KB5089549 for Windows 11 versions 24H2 and 25H2 on May 12, 2026, bringing systems to OS builds 26100.8457 and 26200.8457, while early user reports now claim the update is failing to install or degrading network performance on some PCs. The evidence so far is messy, narrow, and...

Microsoft released its May 2026 Patch Tuesday updates on May 12 for Windows 11, Windows Server, Microsoft Office, Azure, Dynamics 365, Edge, and related products, fixing roughly 138 reported vulnerabilities, including about 30 rated critical and no flaws Microsoft listed as publicly known or...

Microsoft’s May 12, 2026 Patch Tuesday update for Windows 11 versions 24H2 and 25H2 rolls the April KB5083631 preview into the mandatory KB5089549 cumulative release, bringing Xbox mode, broader haptic feedback support, File Explorer fixes, security patches, and other quality-of-life changes to...

Microsoft released Windows 11 cumulative updates KB5089549 and KB5087420 on May 12, 2026, moving versions 25H2 and 24H2 to builds 26200.8457 and 26100.8457, and version 23H2 to build 22631.7079, across its regular Patch Tuesday servicing channels. The headline is security, but the story is...

Microsoft’s May 2026 Patch Tuesday, released on May 12, delivered fixes for at least 118 documented vulnerabilities across Windows, Office, Azure, Dynamics, SQL Server, Edge, Teams, SharePoint, and related products, while major vendors including Apple, Google, Mozilla, and Oracle also pushed...

Microsoft’s May 2026 Patch Tuesday update for Windows 11 began rolling out globally on May 12 as KB5089549, but its headline Xbox Mode feature remains gated by market availability and Microsoft’s controlled rollout system rather than appearing instantly on every updated PC. That split between...

Microsoft disclosed CVE-2026-42832, a Microsoft Office spoofing vulnerability, in its Security Update Guide on May 12, 2026, as part of the latest Patch Tuesday cycle for customers tracking Office security exposure across Windows fleets. The interesting part is not simply that Office has another...

Microsoft disclosed CVE-2026-42830 on May 12, 2026, as an Important elevation-of-privilege vulnerability in the Azure Monitor Agent Metrics Extension, assigning it a CVSS score of 6.5 as part of the May Patch Tuesday security release. The bug is not the loudest item in this month’s bulletin, but...

Microsoft disclosed CVE-2026-41097 on May 12, 2026, as an Important Secure Boot security feature bypass affecting supported Windows client and server releases, with required security updates available and Microsoft saying the issue is not publicly disclosed or exploited. The vulnerability is not...

Microsoft disclosed CVE-2026-40418 on May 12, 2026, as an Important-rated elevation-of-privilege vulnerability in Microsoft Office Click-to-Run, listing it in the May Patch Tuesday security release with no public disclosure or known exploitation at release time and a CVSS base score of 7.8. That...

Microsoft disclosed CVE-2026-40413, a Windows TCP/IP denial-of-service vulnerability, in its May 12, 2026 Patch Tuesday release, rating it Important with a CVSS base score of 7.4 and listing no known public disclosure or exploitation at release. The dry wording hides the real operational point...

Microsoft disclosed CVE-2026-40403 on May 12, 2026, as a critical Windows Graphics Component remote code execution vulnerability in Win32K-GRFX, caused by a heap-based buffer overflow that could let a low-privileged authenticated attacker escape a contained local environment such as a guest...

Microsoft disclosed CVE-2026-40401 on May 12, 2026, as an Important-rated Windows TCP/IP denial-of-service vulnerability caused by a null pointer dereference, affecting supported Windows client and server releases and remediated through the May 2026 security updates. The interesting part is not...

Microsoft disclosed CVE-2026-40398 on May 12, 2026, as an Important-rated Windows Remote Desktop Services elevation-of-privilege vulnerability, with no public disclosure or active exploitation reported at release time and a CVSS base score of 7.8. That combination is easy to misread: not a...

Microsoft disclosed CVE-2026-32209 on May 12, 2026, as a Windows Filtering Platform security feature bypass vulnerability in its May Patch Tuesday release, with public reporting so far confirming the CVE’s existence but offering little public detail about the underlying flaw. That is the story...

Microsoft’s May 12, 2026 Patch Tuesday includes CVE-2026-40397, an Important-severity elevation-of-privilege vulnerability in the Windows Common Log File System driver, with public reporting showing no known exploitation or prior disclosure at release time. The practical reading is not “panic,”...

Microsoft published CVE-2026-40369 on May 12, 2026 as part of its May Patch Tuesday release, identifying it as a Windows kernel-mode driver vulnerability rated Important with a CVSS base score of 7.8. The flaw is not, on the public evidence available today, a panic-grade Windows emergency. But...