CVE-2026-40367

EUVD-2026-29649
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.4 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 36%
Affected Products (NVD)
VendorProductVersion
microsoft365_apps
-
microsoft365_apps
-
microsoftsharepoint_server
𝑥
< 16.0.19725.20280
microsoft365_apps
𝑥
< 2604
microsoftoffice
𝑥
< 2604
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40367