Microsoft Patch Tuesday May 2026 addresses 120 vulnerabilities

Microsoft Patch Tuesday May 2026 – 120 Vulnerabilities Fixed, Including 29 Critical RCE Flaws May 12, 2026 Microsoft’s May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical. Unlike several recent cycles, Microsoft reports no zero‑days exploited in the wild or publicly disclosed ahead of the release, but the breadth of attack surface from DNS and Netlogon to Office and Wi‑Fi drivers means defenders cannot afford to treat this month as low risk....

Microsoft has released fixes for 138 security flaws across Windows, Office, Azure, and Teams — including two in Windows itself that let attackers run code on your computer or company servers without needing a password. None are being actively exploited yet, but 30 are rated Critical. Microsoft also warns that a security certificate built into Windows since 2011 expires on 26 June 2026 — devices that miss the update before that date face serious boot-level failures. Open Windows Update now and install everything available. 🔥 #CyberNewsLive https://lnkd.in/g4SXDVk8

MASSIVE MICROSOFT PATCH TUESDAY SHOCK: 137 SECURITY HOLES FIXED AS CRITICAL WINDOWS AND OFFICE FLAWS PUT MILLIONS AT RISK Introduction: A High-Stakes Security Cleanup Across Microsoft Ecosystem Microsoft’s latest Patch Tuesday arrives as one of the most significant security updates of the year, addressing a staggering 137 vulnerabilities across Windows, Office, Azure, SharePoint, and core graphics components. Among these, 31 are classified as critical, underscoring the potential severity of the threats if left unpatched. While Microsoft confirms that none of these flaws are currently being exploited in the wild as zero-days, the sheer scope of remote code execution (RCE) risks makes this update essential for both individual users and enterprise systems....

🚨 Microsoft’s May 2026 Patch Tuesday addressed 120+ vulnerabilities, including several Critical RCE flaws impacting Windows, Office, and enterprise services. No public zero-days this month — but this is exactly the time for organizations to strengthen patch management and reduce exposure before the next wave hits. Good breakdown here:

Microsoft Releases Mitigation for YellowKey BitLocker Bypass CVE-2026-45585 Exploit Microsoft on Tuesday released a mitigation for a BitLocker bypass vulnerability named YellowKey following its public disclosure last week. The zero-day flaw, now tracked as CVE-2026-45585, carries a CVSS score of 6.8. It has been described as a BitLocker security feature bypass. "Microsoft is aware of a security feature bypass vulnerability in Windows publicly referred to as 'YellowKey,'" the tech giant said in an advisory. "The proof of concept for this vulnerability has been made public, violating coordinated vulnerability best practices." The issue impacts Windows 11 version 26H1 for x64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows Server 2025, and Windows Server 2025 (Server Core installation). https://lnkd.in/g5MyB3wG Please follow Sakshi Sharma for such content. #DevSecOps, #CyberSecurity, #DevOps, #SecOps, #SecurityAutomation, #ContinuousSecurity, #SecurityByDesign, #ThreatDetection, #CloudSecurity, #ApplicationSecurity, #DevSecOpsCulture, #InfrastructureAsCode, #SecurityTesting, #RiskManagement, #ComplianceAutomation, #SecureSoftwareDevelopment, #SecureCoding, #SecurityIntegration, #SecurityInnovation, #IncidentResponse, #VulnerabilityManagement, #DataPrivacy, #ZeroTrustSecurity, #CICDSecurity,#SecurityOps

Microsoft has confirmed a bug in Windows Update that will stop computers in restricted or firewalled networks from downloading security updates from March 2026 onwards. Affected systems show error code 0x80010002 and may silently fall behind on security patches without users realising. The fix requires IT administrators to apply a group policy setting using a Windows feature called Known Issue Rollback — it cannot be done by ordinary users alone. Machines that stop receiving security updates become easier targets for attackers exploiting known flaws. 🔥 #CyberNewsLive https://lnkd.in/e2q9aYT2

Most Windows users have never opened `wf.msc`. That's the advanced Windows Defender Firewall console — and it's already on every Windows 10 and 11 machine. No installation required. With it, you can create a persistent outbound rule that cuts off any program's internet access completely. The app keeps running. It just can't phone home, auto-update, or send telemetry. Practical use cases I see come up repeatedly: → Stopping games from downloading updates mid-session → Containing software you're testing or don't fully trust → Blocking telemetry from apps that bury the opt-out five menus deep → Forcing offline-only mode for specific tools in a managed environment The rule is tied to the specific .exe path you select — so everything else on the machine is unaffected. It survives reboots. And removing it is as simple as right-clicking → Delete. For teams managing multiple machines, the same result is achievable via PowerShell's `New-NetFirewallRule` cmdlet — which is significantly easier to script than the older `netsh advfirewall` approach and supports batch operations cleanly. The full guide walks through the GUI method, Command Prompt, PowerShell (including a batch script), common failure points, and how UWP/Store apps are handled differently. Worth bookmarking if you manage Windows environments. https://lnkd.in/danuMMis #Windows #Cybersecurity #SysAdmin #WindowsFirewall #ITSecurity