CVE-2026-40366
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Published May 12, 2026 · updated Jun 17, 2026 · microsoft 365 apps
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Code
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No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
May 12, 2026 · NIST NVD
Detected
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Jun 17, 2026 · NIST NVD
Updated
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Affected
- cpe microsoft/365 appsversion unspecified
- cpe microsoft/office2019
- cpe microsoft/office long term servicing channel2021
- cpe microsoft/office long term servicing channel2024
Sources
- CVE.orgVulnerability recordCVE-2026-40366
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-40366
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
nvd.nist.gov