Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
References
| Link | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40366 | Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
01 Jun 2026, 19:16
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (en) Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally. |
19 May 2026, 18:05
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40366 - Vendor Advisory | |
| CPE | cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x64:* cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:* cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x64:* cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x64:* cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x86:* cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x86:* cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x86:* cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x64:* cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:macos:*:* cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x86:* cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:* cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:* |
|
| First Time |
Microsoft
Microsoft word Microsoft office Long Term Servicing Channel Microsoft 365 Apps Microsoft office |
12 May 2026, 18:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-12 18:17
Updated : 2026-06-01 19:16
NVD link : CVE-2026-40366
Mitre link : CVE-2026-40366
CVE.ORG link : CVE-2026-40366
JSON object : View
Products Affected
microsoft
- office_long_term_servicing_channel
- 365_apps
- office
- word
CWE
CWE-416
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