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

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Vendors Products
Microsoft Subscribe
365 Apps Subscribe
Microsoft 365 Apps For Enterprise Subscribe
Microsoft Office 2019 Subscribe
Microsoft Office Ltsc 2021 Subscribe
Microsoft Office Ltsc 2024 Subscribe
Office 2019 Subscribe
Office 2021 Subscribe
Office 2024 Subscribe
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 12 Aug 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft microsoft 365 Apps For Enterprise
Microsoft microsoft Office 2019
Microsoft microsoft Office Ltsc 2021
Microsoft microsoft Office Ltsc 2024
Vendors & Products Microsoft microsoft 365 Apps For Enterprise
Microsoft microsoft Office 2019
Microsoft microsoft Office Ltsc 2021
Microsoft microsoft Office Ltsc 2024

Tue, 11 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 11 Aug 2026 17:15:00 +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 365 Apps
Microsoft office 2019
Microsoft office 2021
Microsoft office 2024
Weaknesses CWE-122
CPEs cpe:2.3:a:microsoft:365_apps:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:microsoft:office_2019:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:office_2021:*:*:*:*:long_term_servicing_channel:*:*:*
cpe:2.3:a:microsoft:office_2024:*:*:*:*:long_term_servicing_channel:*:*:*
Vendors & Products Microsoft
Microsoft 365 Apps
Microsoft office 2019
Microsoft office 2021
Microsoft office 2024
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/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: 2026-08-12T03:56:43.154Z

Reserved: 2026-08-03T23:31:50.775Z

Link: CVE-2026-70130

cve-icon Vulnrichment

Updated: 2026-08-11T18:26:54.232Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-08-11T17:19:07.653

Modified: 2026-08-12T05:19:47.090

Link: CVE-2026-70130

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-12T12:00:03Z

Weaknesses