CVE-2026-40418
Microsoft Office Click-To-Run Elevation of Privilege vulnerability
MSRC advisory May 12, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-40418
- Affected products
- Microsoft Office Click-To-Run Elevation of Privilege · Microsoft Microsoft Office Click-To-Run Elevation of Privilege · Microsoft
What happened
Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.
What it means for your business
Microsoft Office Click-To-Run Elevation of Privilege vulnerability (CVE-2026-40418) was added to Microsoft’s security update guidance. Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
Sources
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Need help patching?
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