Description
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
Published: 2026-08-11
Score: 8.4 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

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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'}


Subscriptions

Microsoft 365 Apps Microsoft 365 Apps For Enterprise Microsoft Office 2019 Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 Office 2019 Office 2021 Office 2024
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-08-12T14:50:25.708Z

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: 2026-08-12T15:15:02Z

Weaknesses
  • CWE-122

    Heap-based Buffer Overflow