authentication security

The emergence of CVE-2025-47981—a critical heap-based buffer overflow in the Windows SPNEGO Extended Negotiation (NEGOEX) security mechanism—has sent shockwaves through both enterprise IT departments and the broader cybersecurity community. This newly revealed flaw, affecting one of the...

A critical security vulnerability, identified as CVE-2025-47987, has been discovered in the Credential Security Support Provider protocol (CredSSP) within Microsoft Windows. This flaw is a heap-based buffer overflow that allows an authenticated attacker to elevate privileges locally, posing...

Microsoft’s push toward a passwordless future took a significant step forward this week, as the company began testing third-party passkey integration in Windows 11 for users enrolled in its Dev and Beta Insider channels. While the concept of “passwordless” authentication isn’t new, the practical...

Veeam Backup & Replication (VBR) has recently been found to contain a critical vulnerability, designated as CVE-2025-23120, which allows authenticated domain users to execute arbitrary code remotely on backup servers. This flaw, identified by security researchers at watchTowr Labs, affects VBR...

A newly disclosed vulnerability, known as CVE-2025-33057, has recently focused the attention of security professionals and Windows administrators worldwide. This Windows Local Security Authority (LSA) Denial of Service (DoS) flaw is a stark reminder of the delicate balance between operational...

The recent disclosure of CVE-2025-33056 has sent ripples through the Windows security community, marking another significant chapter in ongoing research and response efforts around Windows Local Security Authority (LSA) vulnerabilities. At its heart, this security flaw, officially named “Windows...

The Local Security Authority Subsystem Service (LSASS) is a critical component of the Windows operating system, responsible for enforcing security policies, handling user authentication, and managing sensitive data such as password hashes. Given its pivotal role, vulnerabilities within LSASS can...

Authentication coercion attacks have emerged as a formidable and evolving threat to enterprise networks leveraging Windows infrastructure. Despite significant advances in native Microsoft security controls, even low-privileged domain accounts can still exercise a range of techniques to force...

The emergence of Void Blizzard—a newly identified, Russian-affiliated threat actor—has sent ripples of concern through cybersecurity communities, government agencies, and critical infrastructure operators worldwide. According to detailed findings published by Microsoft Threat Intelligence, Void...

A new wave of concern has emerged in Microsoft-focused IT circles following the tech giant’s recent disclosure of a significant security vulnerability within Active Directory Certificate Services (AD CS). Identified as CVE-2025-29968, this vulnerability puts a spotlight on the enduring...

The recent April Patch Tuesday updates have brought an unexpected challenge for enterprise administrators and IT security professionals: broken Kerberos authentication for Windows Hello and certificate-based logins on Active Directory Domain Controllers (DC) running supported versions of Windows...

Microsoft and Apple have both recently released critical security patches highlighting the ever-present risks corporate and individual users face in today’s interconnected digital landscape. Although seemingly routine updates, these fixes reveal profound vulnerabilities actively exploited by...

Microsoft's March 2025 Patch Tuesday brought an extensive lineup of bug fixes, but among these was a vulnerability that would quickly escalate into a significant security incident: CVE-2025-24054, an NTLM hash-leaking flaw. While Microsoft initially considered this vulnerability "less likely" to...

Microsoft’s Patch Tuesday in March 2025 introduced a significant security update addressing numerous vulnerabilities. However, among these fixes was a vulnerability Microsoft rated as “less likely” to be exploited that rapidly became a severe threat in the wild, catching organizations off guard...

The latest threat to Windows security—CVE-2025-24054—has thrust NTLM (NT LAN Manager) authentication back into the cybersecurity spotlight, exposing both the fragility of long-standing authentication mechanisms and the urgent need for modernization in enterprise architectures. As organizations...

A newly surfaced cybersecurity threat has put over 130,000 devices under the control of a sophisticated botnet, leveraging these compromised endpoints to mount large-scale password spraying attacks against Microsoft 365 accounts. This troubling development, uncovered by SecurityScorecard’s...

If you woke up on April 22, 2025, eagerly expecting earth-shattering news from Redmond, you might be underwhelmed—but in the best way possible. The KB5055629 preview release for Windows 11 OS builds 22621.5262 and 22631.5262 arrived not as a thunderclap, but as a shrewd, meticulously engineered...

Legacy authentication protocols rarely make the news for good reasons, and yet here we are—NTLM is back in the headlines, but not for a nostalgia tour. Instead, it’s at the center of a renewed wave of cyber-attacks, reminding enterprise IT pros (and anyone reckless enough to run a Windows...

The End of an Era: Microsoft Entra ID’s Move Away from Service Principal-Less Authentication In a rapidly evolving digital landscape, Microsoft’s approach to identity and access management has been a compass for the industry. With the news that Microsoft Entra ID will officially retire service...