Review reviewHigh

CVE-2026-47293

Microsoft Microsoft 365 Apps for Enterprise, Microsoft Office 2019, Microsoft Office LTSC 2021

Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.

PRIORITY ASSESSMENT

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.23%

Technical severityCVSS 7

Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.

Product: Microsoft Microsoft 365 Apps for Enterprise, Microsoft Office 2019, Microsoft Office LTSC 2021
Affected versions: >= 16.0.1 < https://aka.ms/OfficeSecurityReleases, >= 19.0.0 < https://aka.ms/OfficeSecurityReleases, >= 16.0.0 < https://aka.ms/OfficeSecurityReleases, 2019
Fixed versions: No verified fixed-version field is available yet

Confirm exposure before applying a vendor-supported change.

1
Identify
Confirm that Microsoft Microsoft 365 Apps for Enterprise, Microsoft Office 2019, Microsoft Office LTSC 2021 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.