Security Alerts
The latest Security Alerts coverage — news, analysis, and updates from the WindowsNews.AI desk.
CVE-2026-54131: Microsoft Fixes Excel Use-After-Free That Can Hijack Your PC via Spreadsheet
A single maliciously crafted Excel file can give an attacker complete control over your Windows PC—and Microsoft just released a patch to stop it. On July 14, 2026, the Microsoft Security Response...
No Patch to Install: How the Outlook Copilot Command Injection Flaw Changes Your Security Playbook
Microsoft has disclosed a command injection vulnerability in Outlook Copilot, but this isn't a typical Patch Tuesday update. CVE-2026-55145, published on July 14, 2026, carries a CVSS base score of...
Microsoft’s July 2026 SQL Server Patch Plugs Pointer Leak That Could Undo Memory Randomization
Microsoft’s monthly security release for July 2026 includes a fix for CVE-2026-54116, a medium-severity flaw in SQL Server 2025 that lets authenticated attackers extract internal memory pointers....
SQL Server 2025 Data Leak Fixed in July Patch — But It Could Break Your Linked Servers
Microsoft’s July 14, 2026 security update for SQL Server 2025 closes a buffer over-read that could allow authenticated attackers to read sensitive data, but the patch also carries a known issue...
CVE-2026-55135: SharePoint XSS Flaw Enables Spoofing — Patches in July 14 Updates
Microsoft has patched a cross-site scripting vulnerability in SharePoint Server that could allow an authenticated attacker to inject script and spoof content presented to other users. The fix arrived...
Patch Now: Microsoft’s July Update Fixes Critical SharePoint Flaw That Could Give Attackers Total Control
Microsoft dropped its July 14, 2026 security updates, and for SharePoint administrators, one patch is far more urgent than the rest. CVE-2026-55052—a privilege escalation flaw with a CVSS score of...
PowerPoint’s July 14 Patch Fixes a File-Opening Code Execution Threat — Here’s What to Do
On July 14, 2026, Microsoft released a critical security update for Microsoft PowerPoint that closes a dangerous vulnerability allowing attackers to run arbitrary code on your PC. The flaw, tracked...
PowerPoint Flaw CVE-2026-55123: What Makes This Patch Different and Why You Need It Now
Microsoft’s July 2026 Patch Tuesday includes a fix for a memory corruption bug in PowerPoint that attackers can exploit just by convincing you to open a specially crafted presentation. The...
OneNote Vulnerability CVE-2026-55133: Why a ‘Remote Code Execution’ Flaw is Labeled ‘Local’ and What You Must Do Now
A Microsoft OneNote remote code execution vulnerability disclosed on July 14, 2026, is forcing a reckoning with the difference between how attacks are described and how they actually work....
Microsoft Patches Critical PowerPoint Remote Code Execution Flaw – Here’s What You Need to Do
On July 14, 2026, Microsoft pushed a critical security fix for PowerPoint as part of its monthly Patch Tuesday release. The vulnerability, tracked as CVE-2026-55043, is a heap-based buffer overflow...
Microsoft Fixes Office Memory Leak That Can Expose Sensitive Data on Windows and Mac
Microsoft shipped a security fix on July 14, 2026 that closes an information-disclosure vulnerability in Microsoft Office. The bug, logged as CVE-2026-55139, could allow a local user—or a piece of...
Opening a Crafted Document Could Leak Your Data—Microsoft’s July 14 Office Update Fixes It
On July 14, 2026, Microsoft pushed out security updates for Office that close CVE-2026-55042, a vulnerability that lets attackers extract sensitive information by tricking you into opening a...