CVE-2026-65656 - Vulnerability Details - OpenCVE

Improper neutralization of special elements used in a command ('command injection') in Microsoft Office allows an unauthorized attacker to execute code locally.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Vendors	Products
Microsoft	365 Apps Office 2019 Office 2021 Office 2024

No data.

No data.

No data.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65656

History

Tue, 11 Aug 2026 17:15:00 +0000

Type	Values Removed	Values Added
Description		Improper neutralization of special elements used in a command ('command injection') 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-77
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		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65656
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'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-08-11T17:04:53.448Z

Updated: 2026-08-12T03:58:36.216Z

Reserved: 2026-07-22T18:16:01.896Z

Link: CVE-2026-65656

Vulnrichment

No data.

NVD

Status : Undergoing Analysis

Published: 2026-08-11T17:18:53.703

Modified: 2026-08-12T05:19:18.023

Link: CVE-2026-65656

Redhat

No data.

OpenCVE Enrichment

No data.

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