CVE-2026-55031
Microsoft Excel Remote Code Execution vulnerability
MSRC advisory July 14, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-55031
- Affected products
- Microsoft Excel Remote Code Execution · Microsoft Microsoft Excel Remote Code Execution · Microsoft
What happened
Out-of-bounds read 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-2026-55031) was added to Microsoft’s security update guidance. Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally. If you need help checking exposure, call (864) 335-9223.
Sources
Related briefs
Microsoft Excel Remote Code Execution vulnerability
Microsoft Excel Remote Code Execution vulnerability (CVE-2026-81960) was added to Microsoft’s security update guidance. <p>Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.</p> If you need help checking exposure, call (864) 335-9223.
Microsoft Excel Remote Code Execution vulnerability
Microsoft Excel Remote Code Execution vulnerability (CVE-2026-81959) was added to Microsoft’s security update guidance. <p>Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.</p> If you need help checking exposure, call (864) 335-9223.
Microsoft Excel Remote Code Execution vulnerability
Microsoft Excel Remote Code Execution vulnerability (CVE-2026-81957) was added to Microsoft’s security update guidance. <p>Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.</p> If you need help checking exposure, call (864) 335-9223.
Microsoft Excel Remote Code Execution vulnerability
Microsoft Excel Remote Code Execution vulnerability (CVE-2026-81956) was added to Microsoft’s security update guidance. <p>Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.</p> If you need help checking exposure, call (864) 335-9223.
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