CVE-2026-118729 - Vulnerability Details - OpenCVE

ReportizFlow

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

No CVSS v4.0

Attack Vector Network

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.

Key SSVC decision points have not yet been added.

Vendors	Products
Microsoft	365 Apps Office 2021 Office 2024 Office 365 Office Macos 2021 Office Macos 2024

No data.

No data.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118729

History

Tue, 10 Nov 2026 18:30:00 +0000

Type	Values Removed	Values Added
Description		Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
Title		Microsoft Office Excel Remote Code Execution Vulnerability
First Time appeared		Microsoft Microsoft 365 Apps Microsoft office 2021 Microsoft office 2024 Microsoft office 365 Microsoft office Macos 2021 Microsoft office Macos 2024
Weaknesses		CWE-416
CPEs		cpe:2.3:a:microsoft:365_apps:::::enterprise:::* cpe:2.3:a:microsoft:office_2021:::::long_term_servicing_channel:::* cpe:2.3:a:microsoft:office_2021:::::ltsc:::* cpe:2.3:a:microsoft:office_2024:::::long_term_servicing_channel:::* cpe:2.3:a:microsoft:office_365::::::macos::* 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 365 Apps Microsoft office 2021 Microsoft office 2024 Microsoft office 365 Microsoft office Macos 2021 Microsoft office Macos 2024
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118729
Metrics		cvssV3_1 `{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/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: 2026-11-10T18:25:04.525Z

Updated: 2026-11-11T17:20:41.607Z

Reserved: 2026-10-28T19:08:23.386Z

Link: CVE-2026-118729

Vulnrichment

No data.

NVD

Status : Awaiting Analysis

Published: 2026-11-10T19:19:49.377

Modified: 2026-11-10T20:18:24.200

Link: CVE-2026-118729

Redhat

No data.

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