domain controllers

CVE-2026-50426, a Windows DNS Server remote code execution vulnerability disclosed by Microsoft on July 14, 2026, puts the July security updates on the priority list for every supported Windows Server machine running the DNS Server role. Because Active Directory domain controllers frequently...

Microsoft has fixed CVE-2026-49178, a Windows Active Directory Domain Services remote code execution vulnerability that could let an authenticated attacker trigger a heap-based buffer overflow across a network. The flaw carries a CVSS 3.1 score of 8.8 and should be treated as a priority update...

Microsoft’s July 14, 2026 security updates fix CVE-2026-40378, a remotely reachable denial-of-service vulnerability in the Windows Local Security Authority Subsystem Service, better known as LSASS. An unauthenticated attacker can reportedly trigger excessive memory allocation over a network...

Microsoft published CVE-2026-57976 on July 14, 2026; it is an Active Directory Domain Services denial-of-service vulnerability. Administrators should check the Microsoft Security Response Center entry for applicable updates and patch domain controllers in a staged order. Do not assume that an...

CVE-2026-54119 is a remotely triggerable Windows Active Directory denial-of-service vulnerability that requires no authentication or user interaction, giving administrators a clear reason to prioritize Microsoft’s July 14, 2026 security updates on domain controllers and other systems exposing...

Microsoft has patched CVE-2026-49164, a Critical remote code execution vulnerability in Windows Active Directory Domain Services, as part of the July 14, 2026 security updates. Because Active Directory domain controllers sit at the center of authentication, authorization, Group Policy, and...