Office Vulnerabilities
The latest Office Vulnerabilities coverage — news, analysis, and updates from the WindowsNews.AI desk.
200 RCE bugs in June Patch Tuesday—patch Windows, Office, Azure now
Microsoft dropped its June 2026 Patch Tuesday release on June 9, packing fixes for roughly 200 disclosed vulnerabilities spanning Windows, Office, Azure, Exchange Online, Microsoft Graph, SQL Server,...
CVE-2026-45455: Why Excel’s “Low” Severity Info Leak Needs Patching Now
Microsoft dropped a low‑severity security bulletin on June 9, 2026 that should still make Excel users pause. The CVE‑2026‑45455 advisory tags a Microsoft Excel information disclosure...
CVE-2026-45456: Remote Code Execution with CVSS AV:L – Why Microsoft and CVSS Disagree
A newly published vulnerability identifier, CVE-2026-45456, has set off discussion among security professionals because of a seemingly contradictory classification: Microsoft labels it as “Remote...
Excel RCE CVE-2026-45469: Why Local Attack Vector Demands Urgent Patching
Microsoft has assigned CVE-2026-45469 to a newly disclosed remote code execution (RCE) vulnerability in Microsoft Excel. The flaw carries a CVSS attack vector of Local (AV:L), meaning exploitation...
Microsoft Clarifies CVE Terminology: Remote Code Execution vs. CVSS Attack Vector Distinction
Microsoft's Security Response Center has clarified a critical distinction in vulnerability reporting that affects how security professionals interpret Common Vulnerabilities and Exposures (CVE)...
Excel Remote Code Execution Vulnerability Explained: Why CVSS AV:L Rating Doesn't Contradict Microsoft's Classification
Microsoft's recent security bulletin for Excel contains what appears to be a contradiction at first glance: a \"remote code execution\" vulnerability with a CVSS attack vector rating of AV:L, which...
March 2026 Patch Tuesday: Office, Azure Arc MCP, and AI Agents Expand Attack Surface
Microsoft's March 2026 Patch Tuesday reveals a security landscape where traditional software vulnerabilities intersect with cloud infrastructure and emerging AI components. The update addresses 78...
March 2026 Patch Tuesday: Critical Office privilege escalation flaw, plus Sysmon boosts Windows 11 security monitoring
Microsoft's March 10, 2026 Patch Tuesday delivered critical security updates that require immediate attention from both Office administrators and Windows 11 system defenders. The update cycle focused...
CVE-2026-20952 Analysis: Office RCE Vulnerability & AV:L Exploitation Explained
Microsoft's recent disclosure of CVE-2026-20952 has generated significant discussion in security circles, particularly regarding its classification as a Remote Code Execution (RCE) vulnerability with...
CVE vs CVSS: Decoding Microsoft Excel RCE Vulnerabilities and Security Metrics
When Microsoft releases security bulletins about Excel Remote Code Execution (RCE) vulnerabilities, the terminology can create confusion even among experienced IT professionals. The distinction...
Microsoft’s Latest Office Patch Reveals Why Some RCE Vulnerabilities Are Marked ‘Local’ – and What It Means for You
Microsoft’s most recent security update for Microsoft Office tackles a critical remote code execution (RCE) vulnerability, but the accompanying advisory raised an eyebrow: the CVE title screams...
CVE-2025-62557: Critical Office UAF Vulnerability Threatens RCE Attacks
Microsoft has disclosed a critical security vulnerability in its Office productivity suite that could allow attackers to execute arbitrary code on affected systems. CVE-2025-62557, rated with a high...