Tag

Domain Controller

All articles tagged with #domain controller

cyber-security1 month ago•24 min saved

Urgent Patch Urged as Windows Netlogon CVE-2026-41089 Sees Active Exploitation

The critical Windows Netlogon remote code execution vulnerability CVE-2026-41089 is now actively exploited in the wild, allowing unauthenticated code execution on domain controllers via crafted Netlogon requests. Microsoft released patches for supported Windows Server versions as part of May 2026 Patch Tuesday, and advisories urge rapid deployment, enhanced monitoring, and tighter network segmentation to mitigate risk of domain takeover.

via CyberSecurityNews|

#cve-2026-41089 #cyber-security #domain-controller

technology1 month ago•3 min saved

15‑character hostnames break domain controller lookups on Windows Server 2016 after May security update

Microsoft has confirmed a new known issue for Windows Server 2016 after the May 2026 KB5087537 security update: domain controller discovery can fail when the server hostname is exactly 15 characters, with DCLocator returning ERROR_INVALID_PARAMETER and potentially blocking admin tools and DFS Namespace tasks. Microsoft is investigating and has not provided a timeline for a fix.

via BleepingComputer|

#dclocator #domain-controller #kb5087537

technology2 months ago•3 min saved

Microsoft rolls out emergency fixes to stabilize Windows Server after April patches

Microsoft released emergency out-of-band updates to fix issues caused by April 2026 Windows Server patches, including installation failures on Windows Server 2025 (KB5091157) and LSASS-related domain controller restart loops across multiple server versions; additional KBs cover Windows Server 2025 23H2, 2022, 2019, 2016 and Azure Edition hotpatches. Some Server 2025 devices may boot to BitLocker recovery after KB5082063. Other emergency fixes in recent months addressed Bluetooth visibility, RRAS, and sign-in issues.

via BleepingComputer|

#bitlocker #domain-controller #lsass