#microsoft

Microsoft Patches Critical ASP.NET Core Privilege Escalation

Microsoft released emergency out-of-band security updates to fix a critical privilege escalation vulnerability in ASP.NET Core affecting web applications.

Windows 11 Emergency Patch KB5085516 Fixes Microsoft Account Sign-In Failures

Microsoft has released an out-of-band update (KB5085516) for Windows 11 versions 25H2 and 24H2 to resolve a sign-in failure affecting personal Microsoft accounts across multiple apps, including Teams Free and OneDrive. The issue was introduced by the March 2026 Patch Tuesday update and is now fully resolved.

Exchange Online Virtual Account Bug Blocks Email on Mobile and Mac Apps

Microsoft is investigating an ongoing Exchange Online service disruption that has intermittently blocked users from accessing their cloud mailboxes via Outlook mobile and Mac apps since Thursday, caused by a newly introduced virtual account that is now being rolled back across affected environments.

Microsoft Overhauls Windows 11 to Match macOS and Linux

Microsoft announces major Windows 11 changes to compete with macOS and Linux performance and features.

Microsoft Patch Tuesday March 2026: 79 Flaws Fixed Including 2 Zero-Days and Critical Office RCEs

Microsoft's March 2026 Patch Tuesday (March 10) patches 79 vulnerabilities including 2 publicly disclosed zero-days (CVE-2026-21262 SQL Server EoP), 3 Critical flaws, and two Office RCEs (CVE-2026-26110, CVE-2026-26113) exploitable via the preview pane — plus a dangerous Excel/Copilot data exfiltration flaw (CVE-2026-26144).