CVE-2026-55017
Microsoft Office Remote Code Execution vulnerability
MSRC advisory July 14, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-55017
- Affected products
- Microsoft Office Remote Code Execution · Microsoft Microsoft Office Remote Code Execution · Microsoft
What happened
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
What it means for your business
Microsoft Office Remote Code Execution vulnerability (CVE-2026-55017) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally. If you need help checking exposure, call (864) 335-9223.
Sources
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