CVE-2026-42832 - Vulnerability Details - OpenCVE

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

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Microsoft	Excel Excel For Android Office Macos 2021 Office Macos 2024 Word Word For Android

No data.

No data.

References

Link	Providers
https://www.spirityenterprise.com/managed-detection-response-microsoft
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42832

History

Wed, 13 May 2026 11:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Microsoft excel For Android Microsoft word For Android
Vendors & Products		Microsoft excel For Android Microsoft word For Android

Tue, 12 May 2026 19:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 12 May 2026 17:30:00 +0000

Type	Values Removed	Values Added
Description		Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.
Title		Microsoft Office Spoofing Vulnerability
First Time appeared		Microsoft Microsoft excel Microsoft office Macos 2021 Microsoft office Macos 2024 Microsoft word
Weaknesses		CWE-284
CPEs		cpe:2.3:a:microsoft:excel::::::android::* cpe:2.3:a:microsoft:office_macos_2021::::::long_term_servicing_channel::* cpe:2.3:a:microsoft:office_macos_2024::::::long_term_servicing_channel::* cpe:2.3:a:microsoft:word::::::android::*
Vendors & Products		Microsoft Microsoft excel Microsoft office Macos 2021 Microsoft office Macos 2024 Microsoft word
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42832
Metrics		cvssV3_1 `{'score': 7.7, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-05-12T16:59:34.810Z

Updated: 2026-05-13T17:59:29.819Z

Reserved: 2026-04-30T14:51:12.703Z

Link: CVE-2026-42832

Vulnrichment

Updated: 2026-05-12T18:54:27.765Z

NVD

Status : Awaiting Analysis

Published: 2026-05-12T18:17:25.800

Modified: 2026-05-13T15:34:52.573

Link: CVE-2026-42832

Redhat

No data.

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