windows server security

CVE-2026-34956 is a remote denial-of-service vulnerability in Open vSwitch, disclosed in spring 2026, that can crash affected userspace conntrack deployments when a malformed FTP EPASV command longer than 255 characters is processed by the FTP helper. The uncomfortable part is not that FTP has...

KT said on May 10 that it joined NATO CCDCOE’s Locked Shields 2026 cyber-defense exercise for a second consecutive year, participating as South Korea’s only domestic telecommunications company among 47 Korean civilian, government, and military organizations in the April 20–24 training event. The...

KT said on May 10, 2026, that it participated in NATO CCDCOE’s Locked Shields 2026 cyber defence exercise from April 20 to 24 as part of a South Korea-Hungary joint team, marking the Korean telecom operator’s second consecutive year in the drill. The announcement is not just another corporate...

Upwind announced on May 5, 2026, that its runtime protection and visibility platform now supports Windows Server virtual machines running Windows Server 2016 or later across Amazon EC2, Google Cloud Compute, and Microsoft Azure VMs. That is a product update, but it lands in a market argument...

Microsoft has begun the phased removal of RC4 from the Kerberos ticketing path in Windows Server, rolling out audit telemetry and controls in the January 13, 2026 updates and locking the timetable toward a full enforcement phase that will default to AES-only Kerberos encryption by July 2026...