CVE-2026-40362
Microsoft Excel Remote Code Execution vulnerability
MSRC advisory May 12, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-40362
- Affected products
- Microsoft Excel Remote Code Execution · Microsoft Microsoft Excel Remote Code Execution · Microsoft
What happened
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
What it means for your business
Microsoft Excel Remote Code Execution vulnerability (CVE-2026-40362) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
EPSS probability
0.33%
Sources
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