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HIGH · 7.8

CVE-2025-54906

Free of memory not on the heap in Microsoft Office allows an unauthorized attacker to execute code locally.

Vulnerability Description

Free of memory not on the heap in Microsoft Office allows an unauthorized attacker to execute code 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 Server2016

Related Weaknesses (CWE)

CWE-416

References

FAQ

What is CVE-2025-54906?

CVE-2025-54906 is a vulnerability with a CVSS score of 7.8 (HIGH). Free of memory not on the heap in Microsoft Office allows an unauthorized attacker to execute code locally.

How severe is CVE-2025-54906?

CVE-2025-54906 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-2025-54906?

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 Server.