netlogon

Microsoft has begun a coordinated, multi-year hardening of Windows that moves long-standing behaviors—particularly around Kerberos/PAC validation, Netlogon, and Secure Boot certificates—into a stricter, enforcement-first posture, and IT teams must act now to avoid authentication outages, boot...

Microsoft’s security advisory for CVE-2025-53809 warns that improper input validation in the Windows Local Security Authority Subsystem Service (LSASS) can be abused by an authorized attacker to cause a denial of service (DoS) over a network, putting authentication services and domain...

August 12’s cumulative rollup for Windows Server 2022 (KB5063880, OS Build 20348.4052) is a pivotal update that continues Microsoft’s multi-year campaign to harden identity and boot integrity in Windows environments—most notably by reinforcing the Microsoft RPC Netlogon protocol against...

Microsoft has quietly but decisively reworked how Active Directory domain controllers answer certain Netlogon RPC calls — a change rolled into the July and August 2025 cumulative updates that hardens the Microsoft RPC Netlogon protocol, closes an unauthenticated resource‑exhaustion vector...

Microsoft's recent servicing cycle for Windows Server 2022 ties together two urgent security themes: Microsoft has pushed a cumulative update (KB5063880) that carries fixes and quality improvements while reiterating critical remediation guidance for a Netlogon Remote Protocol hardening released...

On July 8, 2025, Microsoft released its monthly Patch Tuesday updates, addressing a substantial number of vulnerabilities across various products. This release is particularly noteworthy due to the introduction of new features in Windows 11 and the resolution of critical security flaws. Overview...

Microsoft’s latest Patch Tuesday release underscores both the relentless pace of software threats and the significant challenges faced by organizations managing complex, interconnected Windows environments. This month’s updates resolve a staggering 137 security vulnerabilities—an unusually high...

June’s security update rollout by Microsoft has sent ripples across the IT landscape, underlining not just the persistent innovation of attackers but also the relentless burden on organizations and end users to stay one step ahead. This latest patch cycle, landing on June 11, featured an...

June’s Patch Tuesday from Microsoft has delivered one of the most notable and urgent security update packages in recent memory, with administrators worldwide racing against threat actors to secure their Windows environments. Spanning 66 vulnerabilities, including a zero-day already being...

The Windows Netlogon service has been a critical component in Microsoft's authentication architecture, facilitating secure communication between clients and domain controllers. However, its history is marred by several significant vulnerabilities that have posed serious security risks to...

Attention Windows enthusiasts and IT admins: Microsoft has just refreshed its playbook for hardening the most vulnerable corners of its operating systems. Yes, we're talking about the nitty-gritty of keeping your Windows environment safe from increasingly devious cyberthreats. If you're...

On October 8, 2024, Microsoft announced a significant vulnerability within the Windows Netlogon service, cataloged as CVE-2024-38124. This vulnerability allows an attacker to gain elevated privileges in a Windows environment, exposing systems to a high risk of unauthorized access and control...

Original release date: October 9, 2020 Summary This joint cybersecurity advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) framework. See the ATT&CK for Enterprise framework for all referenced threat actor techniques. Note: the analysis in this joint...

Discusses event ID 5719 or Group Policy event 1129, which are logged if you have a Gigabit network adapter installed on a Windows-based compute. Provides a resolution. Continue reading...

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Hope someone can help me I have Windows 2003 server and domain control at home. Which has been working fine for years? All of my laptops/pc has been able to connect to it in the most part as they are joined to my AD. I however I got a new laptop a month ok which had windows 8.1 home installed...

Severity Rating: Important Revision Note: V1.0 (July 14, 2015): Bulletin published. Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow elevation of privilege if an attacker who is logged on to a domain-joined system runs a specially crafted...

Severity Rating: Important Revision Note: V1.0 (March 10, 2015): Bulletin published. Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow spoofing if an attacker who is logged on to a domain-joined system runs a specially crafted application...