endpoint security

Microsoft’s Security Response Center has cataloged CVE-2025-54915 as an elevation-of-privilege vulnerability in the Windows Defender Firewall Service described as “Access of resource using incompatible type (‘type confusion’),” and the vendor advises that an authorized local attacker could...

Improper access control in Windows MultiPoint Services (CVE-2025-54116) allows a locally authorized attacker to elevate their privileges on an affected host. (msrc.microsoft.com) Executive summary What it is: CVE-2025-54116 is an elevation-of-privilege (EoP) vulnerability in Microsoft’s Windows...

CVE-2025-54109 Windows Defender Firewall Service Elevation of Privilege Vulnerability Summary What it is: CVE-2025-54109 is an elevation-of-privilege (EoP) vulnerability described by Microsoft as "Access of resource using incompatible type ('type confusion')" in the Windows Defender Firewall...

Note: below is a long-form, technically focused feature article about CVE-2025-53804. I drew on Microsoft’s official entry for this CVE and on Microsoft documentation and guidance about kernel-mode drivers and driver blocklists to explain the risk, likely exploitation paths, detection and...

Microsoft has published an advisory identifying CVE-2025-55317, a local elevation-of-privilege flaw in Microsoft AutoUpdate (MAU) caused by improper link resolution before file access — commonly described as a link-following or symlink/junction weakness — that can allow an authorized local...

A newly disclosed Microsoft Excel vulnerability tracked as CVE-2025-54902 is an out‑of‑bounds read flaw in Excel’s file‑parsing logic that Microsoft warns could allow an attacker to achieve code execution on a targeted machine when a user opens a specially crafted spreadsheet, and organizations...

Microsoft has published an advisory for CVE-2025-54896: a use-after-free vulnerability in Microsoft Office Excel that, when exploited via a specially crafted workbook, can lead to code execution in the context of the user who opens the file. This class of bug is a recurring and high-consequence...

Microsoft’s advisory for CVE-2025-54895 warns that an integer overflow or wraparound in the SPNEGO Extended Negotiation (NEGOEX) security mechanism can be triggered by an authorized local actor to elevate privileges, turning a legitimate local account into a pathway to SYSTEM-level control if...

Microsoft’s “new Outlook” for Windows has finally closed one of its most glaring gaps with the classic client: you can now access certain email attachments while offline, alongside a handful of usability fixes — from adding multiple recipients to replies to restoring the familiar Ctrl+F “find”...

Since March 2025, threat actors have increasingly weaponized ConnectWise ScreenConnect installers — using trojanized, stripped-down ClickOnce runners and other delivery tricks to convert a trusted remote administration tool into a stealthy initial-access vector that drops multiple RATs and...

KMSpico is a widely mentioned but legally fraught program: it emulates Microsoft’s Key Management Service (KMS) to make Windows and Office think they are legitimately volume‑activated, and while that promises “free activation” it carries clear legal, security, and operational downsides that make...

Microsoft has acknowledged a compatibility regression introduced by the August 12, 2025 cumulative Windows updates that can cause unexpected User Account Control (UAC) elevation prompts and MSI Error 1730 failures for non‑administrator users when applications trigger Windows Installer (MSI)...

Microsoft’s decision to stop issuing free security updates for Windows 10 on 14 October 2025 has forced IT leaders into a binary choice: pay to buy time, or accelerate an estate-wide migration to Windows 11 — and the short-term cost of staying on Windows 10 could be measured in billions for...

With the clock ticking toward Windows 10’s end of support on October 14, 2025, organisations that still treat migration as a planning exercise run a growing risk of being forced into costly, disruptive decisions at the worst possible moment; moving now from planning to implementation secures...

The States of Guernsey has told staff that anyone who needs a laptop for their job will be issued a new machine if their existing device cannot run Windows 11, part of a wider, government‑wide upgrade to modernise endpoints and retire legacy systems — a move that coincides with the States’...

CISA’s latest update places three long‑standing and newly discovered flaws squarely in the crosshairs of enterprise defenders, adding CVE‑2013‑3893 (Internet Explorer), CVE‑2007‑0671 (Microsoft Excel), and CVE‑2025‑8088 (WinRAR) to the agency’s Known Exploited Vulnerabilities (KEV) Catalog on...

Microsoft’s Security Update Guide lists CVE-2025-53783 as a heap-based buffer overflow in Microsoft Teams that “allows an unauthorized attacker to execute code over a network,” but the advisory page requires JavaScript and cannot be fully scraped by some automated tools; independent indexing of...

Microsoft’s Security Response Center (MSRC) has cataloged CVE-2025-50155 as an Elevation of Privilege (EoP) vulnerability in the Windows Push Notifications Apps component described as “Access of resource using incompatible type (‘type confusion’).” The issue allows an authorized local attacker —...

Microsoft’s Security Response Center has published an advisory listing CVE-2025-53739 — an Excel vulnerability described as “Access of resource using incompatible type (‘type confusion’)” that can lead to code execution when a crafted spreadsheet is processed by the desktop client...

Microsoft has confirmed a use‑after‑free vulnerability in Microsoft Office Visio — tracked as CVE‑2025‑53734 — that can be triggered when a user opens a specially crafted Visio file and may allow an attacker to execute code in the context of the current user; Microsoft’s advisory entry is live...