exchange server

Microsoft’s Exchange team published a short but important Hotfix Update (HU) rollup for September 2025 that is aimed at fixing a non‑security issue in earlier updates and, crucially, preserves support for the dedicated Exchange hybrid application workflow introduced earlier in 2025 — the update...

Microsoft’s August Patch Tuesday is a heavyweight release: Redmond shipped fixes for more than a hundred security flaws, closed a clutch of high‑severity remote code execution and privilege‑escalation defects, and bundled new Windows 11 quality and AI‑adjacent features that will change how some...

Microsoft’s August Patch Tuesday delivered a heavy-duty security package this month — industry tallies vary between 107 and 111 vulnerabilities, including a publicly disclosed Kerberos elevation-of-privilege issue (CVE‑2025‑53779) and roughly a dozen other critical remote‑code‑execution (RCE)...

Microsoft’s security portal lists CVE-2025-25007 as a Microsoft Exchange Server spoofing vulnerability caused by improper validation of syntactic correctness of input, but public technical detail and third‑party analysis for this specific CVE remain sparse at the time of publication —...

Title: CVE-2025-25006 — Microsoft Exchange Server Spoofing Vulnerability: what admins need to know and do now Date: August 12, 2025 By: WindowsForum.com Security Desk Executive summary On or around August 2025 Microsoft’s Update Guide lists CVE-2025-25006 as “Microsoft Exchange Server Spoofing...

A Microsoft Security Update Guide entry for CVE-2025-33051 describes an information disclosure vulnerability affecting Microsoft Exchange Server, and the appearance of that CVE on the vendor’s advisory should put any on‑premises Exchange administrator on high alert. At the time of writing...

A newly revealed security flaw in Microsoft Exchange hybrid configurations has sent ripples of concern through the IT community, as organizations with combined on-premises and cloud email environments are now exposed to invisible privilege escalation attacks. The critical vulnerability...

A high-severity security vulnerability has emerged at the heart of countless enterprise communications: Microsoft has issued a warning about a flaw in hybrid Exchange Server deployments that could give cyber attackers undetected escalated access to Exchange Online—potentially undermining the...

A high-severity vulnerability, designated CVE-2025-53786, has sent urgent ripples through the IT and cybersecurity communities as organizations relying on Microsoft’s hybrid Exchange deployments face a new vector for privilege escalation and potential domain-wide compromise. Microsoft has...

A critical security update has emerged for organizations leveraging Microsoft Exchange Server in hybrid cloud environments, as CVE-2025-53786 exposes a significant elevation of privilege vulnerability. On April 18th, 2025, Microsoft not only published important security changes for hybrid...

Microsoft has announced a significant policy change affecting organizations using legacy versions of Exchange Server. Starting October 1, 2025, the company will block native public folder migrations from Exchange Server 2010 and earlier to Exchange Online. This move is part of Microsoft's...

For legacy Exchange administrators—the end is no longer nigh, it is officially on the calendar. From October 1, 2025, Microsoft will block all public folder migrations from Exchange Server 2010 and earlier to Exchange Online, halting a migration path that has long served as a lifeline for...

Microsoft has announced a critical update regarding the support lifecycle of its Exchange Server and Skype for Business products. As of October 14, 2025, support for Exchange Server 2016 and 2019, as well as Skype for Business Server 2015 and 2019, will officially end. To assist organizations in...

Microsoft has announced an extension of its security update programs for Exchange Server 2016 and 2019, as well as Skype for Business Server 2015 and 2019. This decision comes in response to customer feedback indicating that while many organizations have initiated migrations to newer platforms...

As Microsoft Exchange Server 2016 and 2019 approach end-of-support in October 2025, countless organisations find themselves at a digital crossroads, compelled to confront deep strategic questions about the future of their communication infrastructure. The clock is ticking for IT leaders: it’s no...

Microsoft has officially released the Exchange Server Subscription Edition (SE) on July 1, 2025, marking a significant shift in its on-premises email server offerings. This new edition is set to replace Exchange Server 2016 and Exchange Server 2019, both of which will reach the end of support on...

The release of Exchange Server Subscription Edition (SE) marks a pivotal moment for Microsoft’s enterprise email infrastructure, moving decisively into a new era characterized by a subscription-centric, cloud-aligned approach even for on-premises scenarios. Enterprises that have depended on...

Microsoft’s recent transition to subscription-only models for on-premises Exchange Server and Skype for Business Server marks one of the most significant changes in the company’s approach to enterprise communications in recent memory. After years of committing to a hybrid model that balanced...

For IT professionals and business leaders worldwide, the looming end-of-support deadline for Microsoft Exchange Server 2016, Exchange Server 2019, and Outlook 2016 is an event that demands urgent attention. Microsoft has firmly scheduled the end-of-support for these widely used messaging and...

Users and administrators across Australia are facing mounting frustration as Microsoft investigates ongoing email delays in Exchange Online, bringing into focus the critical reliance on cloud-based communications for modern businesses. Since Microsoft acknowledged the issue on May 22, many...