CVE-2026-65807
Microsoft Excel Remote Code Execution vulnerability
MSRC advisory August 11, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-65807
- Affected products
- Microsoft Excel Remote Code Execution · Microsoft Microsoft Excel Remote Code Execution · Microsoft
What happened
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
What it means for your business
Microsoft Excel Remote Code Execution vulnerability (CVE-2026-65807) was added to Microsoft’s security update guidance. Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. If you need help checking exposure, call (864) 335-9223.
Sources
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