Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sat, 16 May 2026 02:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:microsoft:office:*:*:*:*:*:android:*:*
cpe:2.3:a:microsoft:office:2021:*:*:*:ltsc:macos:*:*
cpe:2.3:a:microsoft:office:2024:*:*:*:ltsc:macos:*:*

Wed, 13 May 2026 10:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 13 May 2026 10:00:00 +0000

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

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

Type Values Removed Values Added
Description Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
Title Microsoft Office Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft office
Microsoft office Macos 2021
Microsoft office Macos 2024
Weaknesses CWE-122
CPEs cpe:2.3:a:microsoft:office:*:*: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:*:*
Vendors & Products Microsoft
Microsoft office
Microsoft office Macos 2021
Microsoft office Macos 2024
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-05-15T17:12:56.722Z

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

Link: CVE-2026-42831

cve-icon Vulnrichment

Updated: 2026-05-13T09:59:57.006Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-12T18:17:25.673

Modified: 2026-05-16T02:05:50.750

Link: CVE-2026-42831

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-13T10:00:10Z

Weaknesses