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HIGH · 7.7

CVE-2026-42832

Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.

Vulnerability Description

Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.

CVSS Score

7.7

HIGH

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

Affected Products

VendorProductVersions
MicrosoftExcel< 16.0.19822.20190
MicrosoftOffice2024
MicrosoftOffice Long Term Servicing Channel2021
MicrosoftWord< 16.0.19822.20190

Related Weaknesses (CWE)

CWE-284

References

FAQ

What is CVE-2026-42832?

CVE-2026-42832 is a vulnerability with a CVSS score of 7.7 (HIGH). Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.

How severe is CVE-2026-42832?

CVE-2026-42832 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-42832?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Excel, Microsoft Office, Microsoft Office Long Term Servicing Channel, Microsoft Word.