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HIGH · 7.8

CVE-2025-47994

Deserialization of untrusted data in Microsoft Office allows an unauthorized attacker to elevate privileges locally.

Vulnerability Description

Deserialization of untrusted data in Microsoft Office allows an unauthorized attacker to elevate privileges locally.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
Microsoft365 Apps-
MicrosoftOffice2016
MicrosoftOffice Long Term Servicing Channel2021
MicrosoftSharepoint Enterprise Server2016

Related Weaknesses (CWE)

CWE-502

References

FAQ

What is CVE-2025-47994?

CVE-2025-47994 is a vulnerability with a CVSS score of 7.8 (HIGH). Deserialization of untrusted data in Microsoft Office allows an unauthorized attacker to elevate privileges locally.

How severe is CVE-2025-47994?

CVE-2025-47994 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-47994?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft 365 Apps, Microsoft Office, Microsoft Office Long Term Servicing Channel, Microsoft Sharepoint Enterprise Server.