CVE-2026-64918

EUVD-2026-73643
Insufficiently protected credentials in Microsoft Office allows an unauthorized attacker to perform spoofing over a network.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 58.55%
Affected Products (NVD)
VendorProductVersion
microsoft365_apps
-
microsoftoffice_2016
-
microsoftoffice_2019
-
microsoftoffice_2021
-
microsoftoffice_2024
-
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64918