CVE-2026-47635: Microsoft Outlook and Word Remote Code Execution Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
Other sources
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
— NVD
Microsoft Outlook and Word Remote Code Execution Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in https://aka.ms/OfficeSecurityReleases
Event History
Frequently Asked Questions
What is the severity of CVE-2026-47635?
CVE-2026-47635 has a severity rating of high, with a score of 8.4.
How do I fix CVE-2026-47635?
To mitigate CVE-2026-47635, apply the latest security updates provided by Microsoft for affected Microsoft Office products.
What is the impact of CVE-2026-47635?
CVE-2026-47635 allows an unauthorized attacker to execute code locally by exploiting a type confusion issue in Microsoft Outlook and Word.
Which software is affected by CVE-2026-47635?
CVE-2026-47635 affects Microsoft Office 2024 and Microsoft Outlook and Word in both 32-bit and 64-bit editions.
When was CVE-2026-47635 published?
CVE-2026-47635 was published on June 9, 2026.