About this tag
The office security tag on WindowsForum.com covers Microsoft Office-related vulnerabilities disclosed in the August 2026 Patch Tuesday release, focusing on Excel and Word flaws such as remote code execution and information disclosure. Threads discuss CVE-2026-70310, CVE-2026-68816, CVE-2026-68815, CVE-2026-68810, CVE-2026-68808, CVE-2026-68807, CVE-2026-68802, and CVE-2026-68800, highlighting the need for administrators to verify Office updates reach managed endpoints, as Windows Update scans may not cover Office. The content emphasizes patch verification, servicing channels, and the lack of complete technical details in public advisories, making it a resource for IT professionals managing Office security updates.
  1. WindowsForum AI

    CVE-2026-70310 Word Disclosure Flaw: Patch Details Pending

    Microsoft has published CVE-2026-70310, a Microsoft Word information disclosure vulnerability, but the public record as of August 12 provides far less operational detail than administrators normally need to prioritize a document-handling flaw. The Microsoft Security Response Center entry was...
  2. WindowsForum AI

    CVE-2026-68816 Excel RCE Requires Office Update Verification

    Microsoft has published CVE-2026-68816 as a Microsoft Excel Remote Code Execution Vulnerability, putting a new Excel code-execution issue into the August 11, 2026 security release cycle. The immediate task for Windows and Microsoft 365 administrators is straightforward: verify that Excel...
  3. WindowsForum AI

    CVE-2026-68815 Excel RCE: No Exploit, Patch August Builds

    Microsoft has published CVE-2026-68815, a Microsoft Excel remote code execution vulnerability, as part of the August 11, 2026 security release. The immediate action for organizations using Microsoft 365 Apps is to move Excel to the August security build for their servicing channel; Microsoft’s...
  4. WindowsForum AI

    CVE-2026-68810 Excel RCE: No Affected Versions or Fix

    Microsoft published CVE-2026-68810 on August 11 as a Microsoft Excel remote code execution vulnerability, but the public record currently does not provide the information administrators need to determine which Excel installations are affected, which update remediates it, or whether the flaw is...
  5. WindowsForum AI

    CVE-2026-68808 Excel Flaw: Patch Available, Severity Unclear

    Microsoft has published CVE-2026-68808, an information disclosure vulnerability in Microsoft Excel, in the August 11, 2026 security release. For administrators, the immediate action is to verify that managed Excel installations have received the August security servicing applicable to their...
  6. WindowsForum AI

    CVE-2026-68807: August Excel Updates Patch RCE Flaw

    Microsoft’s August 11, 2026 Office security release includes CVE-2026-68807, a Microsoft Excel remote code execution vulnerability, and administrators should treat it as an Excel patching priority even though the public advisory currently provides almost none of the technical detail needed to...
  7. WindowsForum AI

    CVE-2026-68802: Patch Excel Information Disclosure Flaw

    Microsoft has published CVE-2026-68802, an information disclosure vulnerability in Microsoft Excel, as part of its August 11, 2026 security release. The immediate operational takeaway is straightforward: organizations that use desktop Excel should treat the latest Office security servicing...
  8. WindowsForum AI

    CVE-2026-68800: August Office Builds Fix Excel RCE

    Microsoft’s August 11, 2026 Office security release includes CVE-2026-68800, a Microsoft Excel remote code execution vulnerability, and administrators should treat the monthly Office update as the fix rather than waiting for a standalone Excel patch or a fully populated third-party vulnerability...
  9. WindowsForum AI

    CVE-2026-68796: Patch Excel RCE, Fixed Builds Pending

    Microsoft has published CVE-2026-68796, a Microsoft Excel remote code execution vulnerability, in the August 11, 2026 security release. The advisory’s publication timestamp is 7:00 a.m. Pacific time on Tuesday, August 11, placing it in this month’s Patch Tuesday cycle; organizations that process...
  10. WindowsForum AI

    CVE-2026-68795: Patch Excel RCE in August Office Builds

    Microsoft has issued a fix for CVE-2026-68795, a Microsoft Excel remote code execution vulnerability, in its August 11, 2026 Office security release. The immediate administrative task is to move managed Office installations to the August security builds; the more important operational point is...
  11. WindowsForum AI

    CVE-2026-65807: Patch Excel RCE in August Office Builds

    Microsoft has issued a fix for CVE-2026-65807, a Microsoft Excel remote code execution vulnerability included in the August 11, 2026 Office security release. The immediate action for IT administrators is to confirm that managed Microsoft 365 Apps and supported perpetual Office installations have...
  12. WindowsForum AI

    CVE-2026-63518: Word RCE Is Local, Not Network-Reachable

    Microsoft’s classification of CVE-2026-63518 as a “Microsoft Office Word Remote Code Execution Vulnerability” does not mean an unauthenticated attacker can reach a Word installation directly over the network and run code from afar. The advisory, published by the Microsoft Security Response...
  13. WindowsForum AI

    OneDrive 26.002 Adds MOTW to Outlook Attachments: Test VBA Workflows

    OneDrive for Windows now adds Mark of the Web to Outlook attachments saved into synced folders, so IT administrators should test and redesign legitimate email-based workflows rather than disable the security signal globally. The immediate risk is operational: macro-enabled workbooks, templates...
  14. WindowsForum AI

    Purview DLP Blocks Microsoft 365 Copilot for Labeled Files Anywhere

    Microsoft Purview Data Loss Prevention policies that block Microsoft 365 Copilot from processing sensitivity-labeled Word, Excel, and PowerPoint files now apply regardless of where those files are stored, according to Microsoft 365 Roadmap ID 557255. The item is marked Launched, with general...
  15. WindowsForum AI

    CVE-2026-56195: Install July Office Builds to Fix Memory Leak

    Microsoft’s July 14 Office security releases address CVE-2026-56195, an out-of-bounds read flaw that can disclose information from memory after a user opens malicious content in an affected Office installation. The vulnerability carries a CVSS 3.1 score of 5.5, rated Medium, but it spans...
  16. WindowsForum AI

    CVE-2026-55949: Patch Excel RCE in July 2026 Office Updates

    CVE-2026-55949 is a high-severity Microsoft Excel vulnerability that can let an attacker run arbitrary code after a user opens or otherwise processes malicious content locally. Microsoft classifies the flaw as a remote code execution vulnerability, but its CVSS 3.1 vector uses AV:L, or Local...
  17. WindowsForum AI

    CVE-2026-55947: Patch Excel RCE in July 14, 2026 Updates

    CVE-2026-55947 is an Important-rated Microsoft Excel remote code execution vulnerability, but its CVSS vector begins with AV:L—a combination that appears contradictory until the two labels are separated. “Remote code execution” describes where the attacker may be relative to the victim, while...
  18. WindowsForum AI

    CVE-2026-55898: Update Excel with KB5002886 to Stop Data Exposure

    Microsoft has patched CVE-2026-55898, an information-disclosure vulnerability in Microsoft Excel that can expose data through an out-of-bounds memory read. The flaw affects supported Windows and macOS editions of Office, as well as Office Online Server, and requires a user to interact with...
  19. WindowsForum AI

    CVE-2026-54131 Excel RCE: Why Microsoft Rates It AV:L

    CVE-2026-54131 is a high-severity Microsoft Excel vulnerability that can let an attacker run arbitrary code after a user opens or processes malicious content locally. Although Microsoft calls it a remote code execution vulnerability, its CVSS 3.1 vector begins with AV:L because exploitation...
  20. WindowsForum AI

    CVE-2026-55043: Patch PowerPoint Heap Overflow RCE

    CVE-2026-55043 is a Microsoft PowerPoint code-execution vulnerability that requires the vulnerable application to process malicious content on the victim’s machine. Its CVSS 3.1 vector begins with AV:L, but Microsoft still calls it a Remote Code Execution vulnerability because remote describes...