AI and data stack advisories

Severe, 6 weeks1498Projects326

1498 severe, 6 weeks · 326 projects

MicrosoftCVE-2026-64918

Microsoft 365 Apps for Enterprise: spoofing

Microsoft

CVE-2026-64918 · Published Sep 8, 2026 · updated Oct 30, 2026

Medium6.5
No fix yet
Microsoft advisory

Insufficiently protected credentials in Microsoft Office allows an unauthorized attacker to perform spoofing over a network.

Affected versions

PackageAffectedFixed in
Microsoft 365 Apps for Enterprise
Product
>= 16.0.1, < https://aka.ms/OfficeSecurityReleaseshttps://aka.ms/OfficeSecurityReleases

Changes since it was listed

Fixed inNov 3Fixed in: Microsoft 365 Apps for Enterprise https://aka.ms/OfficeSecurityReleases, Microsoft Office 2016 16.0.5569.1003, Microsoft to Microsoft 365 Apps for Enterprise https://aka.ms/OfficeSecurityReleases
Details and references
CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-522

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