What is CVE-2026-97774?

CVE-2026-97774 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Microsoft Office Click-To-Run Elevation of Privilege Vulnerability

Which CVE IDs does CVE-2026-97774 cover?

CVE-2026-97774 covers the following CVE IDs: CVE-2026-97774. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-97774?

CVE-2026-97774 has a CVSS v3 base score of 7.0, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-97774?

CVE-2026-97774 affects 2 products, including: Microsoft 365 Apps for Enterprise for 32-bit Systems; Microsoft 365 Apps for Enterprise for 64-bit Systems.

CVE-2026-97774HighCVSS 7.0

Microsoft Office Click-To-Run Elevation of Privilege Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

October 13, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-97774 →

📋 Description

Time-of-check time-of-use (toctou) race condition in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.

🎯 Affected products2

Microsoft 365 Apps for Enterprise for 32-bit Systems
Microsoft 365 Apps for Enterprise for 64-bit Systems

✅ Remediation

KBClick to Run (Security Update) — fixed build https://aka.ms/OfficeSecurityReleases

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97774
referencehttps://docs.microsoft.com/en-us/officeupdates/office365-proplus-security-updates