Microsoft links Exchange Server instability to October 2026 Windows updates. See the OWA and mail queue symptoms, plus the registry fix.
Patch Tuesday
The October 2026 Patch Tuesday fixes 1,414 flaws and three zero-day vulnerabilities, including an exploited Windows Shell bypass. Patch now.
Windows 11 update KB5124008 breaks USB audio, Remote Desktop, and Hyper-V folder sharing. Microsoft has confirmed the bugs but has no fix yet.
The Excel KB5002914 security update breaks copy, paste, and formula dragging across Office 2016 to 2024. Here is what is happening and how to fix it.
Microsoft's September 2026 Patch Tuesday fixes two zero-day flaws, CVE-2026-81963 and CVE-2026-85880, both exploited in the wild.
A Windows HTTP.sys vulnerability, CVE-2026-62735 (CVSS 7.8), now has public details and a PoC. It escalates local users to SYSTEM. Patch now.
Microsoft August 2026 Patch Tuesday fixes 421 flaws, including CVE-2026-68820, a WinSock zero-day exploited in the wild by Lazarus Group.
Details and proof-of-concept exploit code for CVE-2026-50343 are now public. The Windows privilege escalation flaw hands standard users SYSTEM privileges.
Certighost AD CS vulnerability details and PoC code for CVE-2026-54121 are public. The flaw let a low-privileged user impersonate a Domain Controller.
A public PoC exploit now targets CVE-2026-50502, an RCE in the Windows Event Log service. Microsoft patched the flaw on July 14, 2026. Details below.
A public PoC for CVE-2026-42980 details a Windows privilege escalation flaw in the kernel WMI code. It grants SYSTEM on unpatched builds.
Microsoft explains Windows monthly updates terminology: B releases, quality updates, optional previews, OOB patches, and CFR rollouts clarified.
Microsoft's July 2026 Patch Tuesday fixes 570 flaws. Zero-days CVE-2026-56155 and CVE-2026-56164 are exploited in the wild. Patch now.
CISA flags an actively exploited SharePoint vulnerability (CVE-2026-45659) enabling remote code execution. Patch SharePoint Server 2016 now.
Microsoft confirms a Windows Recycle Bin bug in the June 2026 update that shows internal $R filenames when you delete a single file.
A critical Netlogon RCE vulnerability is actively exploited in the wild. Learn how to secure your Windows domain controllers immediately.
Stay secure with the latest Oracle security patch updates. Learn how these fixes address critical software vulnerabilities across multiple enterprise platforms.
Microsoft’s May 2026 update fixes 137 vulnerabilities, including 30 Critical RCE and EoP flaws. Prioritize patches for Netlogon, Office, and M365 Copilot now.
Microsoft’s April 2026 Patch Tuesday fixes two "wormable" CVEs (9.8 & 8.1 CVSS). Secure your network against zero-click RCE and lateral movement now.
Microsoft releases KB5083769 for Windows 11, fixing BitLocker recovery loops and preparing for the critical June 2026 UEFI certificate expiration.
Urgent Patch Alert: SharePoint Spoofing Under Active Attack as Microsoft Releases April 2026 Updates
Microsoft’s April 2026 Patch Tuesday fixes 163 flaws, including an exploited SharePoint spoofing bug (CVE-2026-32201). Patch by April 28 per CISA mandate.
Microsoft’s Windows 11 Health Dashboard is officially clear of bugs—for now. Discover the latest fixes and why a mandatory 25H2 update is coming this October.