Office Security
The latest Office Security coverage — news, analysis, and updates from the WindowsNews.AI desk.
Microsoft’s July 2026 Patch Seals an Excel Data-Leak Flaw—Check Your Office Build Today
Microsoft’s July 2026 security updates deliver a fix for CVE-2026-55138, an Excel information-disclosure vulnerability that can leak sensitive data when a victim opens a malicious spreadsheet. The...
Excel RCE Flaw CVE-2026-55041 Patched: Install KB5002886 Now to Prevent Code Execution
A newly patched Microsoft Excel vulnerability could let an attacker hijack your computer just by tricking you into opening a malicious file. The security hole, tracked as CVE-2026-55041, was fixed on...
Microsoft Patches Word Memory Leak CVE-2026-55050: Info-Disclosure Risk Across Office, Mac, and SharePoint
Microsoft’s July 2026 security updates have squashed a memory-leak vulnerability in Word that could let attackers extract sensitive data from a system by tricking a user into opening a specially...
Excel RCE Bug CVE-2026-55039 Patched July 14: How a Malicious Spreadsheet Can Compromise Your PC
Microsoft’s July 2026 Patch Tuesday landed on July 14, and among the fixes is a vulnerability in Excel that security teams and everyday users should take seriously. Designated CVE-2026-55039, the...
Patch Excel Immediately: Microsoft’s July 2026 Update Blocks a Remotely Delivered Code Execution Attack
On July 14, 2026, Microsoft released a security update for Microsoft Excel that fixes a remote code execution vulnerability tracked as CVE-2026-55031. The flaw, rated Important with a CVSS 3.1 base...
Patch Excel Immediately: The July 14 Update Closes a Code Execution Flaw (CVE-2026-55025)
Microsoft’s July 2026 security updates for Office include a fix for a high-severity vulnerability in Excel that could let an attacker take over a PC just by convincing someone to open a specially...
Microsoft’s July 14 Office Update Seals Off a Type-Confusion Flaw That Could Execute Malicious Code
Microsoft’s July 2026 Patch Tuesday delivered a critical security update for Microsoft Office, closing CVE-2026-55022 — a memory corruption vulnerability that could allow remote code execution...
Patch Now: Microsoft Office Vulnerability CVE-2026-55018 Lets Attackers Run Code via Malicious Files
{ "title": "Patch Now: Microsoft Office Vulnerability CVE-2026-55018 Lets Attackers Run Code via Malicious Files", "content": "Microsoft on July 14, 2026, released security updates that patch a...
Excel Memory-Disclosure Vulnerability Patched in Microsoft’s July 2026 Updates
On July 14, 2026, Microsoft pushed out security fixes for Office that plug a memory-disclosure vulnerability in Excel. Tracked as CVE-2026-50408, the flaw can expose sensitive data from the...
Microsoft: Apply July 2026 Excel Patches Now to Block New Remote Code Execution Attacks
Microsoft has released security updates for Microsoft Excel that close a high-severity vulnerability allowing attackers to run malicious code on a victim's PC simply by persuading them to open a...
Stop That Spreadsheet: Microsoft Fixes Excel's Memory Leak in July 2026 Update
On July 14, 2026, Microsoft released a critical security patch for multiple versions of Excel, closing a vulnerability that allows attackers to read sensitive data from a computer’s memory simply...
Excel Security Alert: That 7.8-Rated Memory Bug Is Not a Network Attack, But You Must Patch Now (CVE-2026-47642)
Microsoft’s July 2026 Patch Tuesday delivered a fix for a use-after-free vulnerability in Excel that, if exploited, gives an attacker the keys to your system. The flaw, designated CVE-2026-47642,...