Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

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Vendors Products
Microsoft Subscribe
365 Apps Subscribe
Excel 2016 Subscribe
Microsoft 365 Subscribe
Microsoft 365 Apps For Enterprise Subscribe
Microsoft Office Ltsc For Mac 2021 Subscribe
Microsoft Office Ltsc For Mac 2024 Subscribe
Office 2019 Subscribe
Office 2021 Subscribe
Office 2024 Subscribe
Office 365 Subscribe
Office For Mac Subscribe
Office Macos 2021 Subscribe
Office Macos 2024 Subscribe
Office Online Server Subscribe
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Fri, 07 Aug 2026 10:30:00 +0000

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

Tue, 14 Jul 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 14 Jul 2026 17:45:00 +0000

Type Values Removed Values Added
Description Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Title Microsoft Excel Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft 365 Apps
Microsoft excel 2016
Microsoft office 2019
Microsoft office 2021
Microsoft office 2024
Microsoft office 365
Microsoft office Macos 2021
Microsoft office Macos 2024
Weaknesses CWE-822
CPEs cpe:2.3:a:microsoft:365_apps:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:microsoft:excel_2016:*:*:*:*:*:*:x86:*
cpe:2.3:a:microsoft:office_2019:*:*:*:*:*:*:*:*
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 excel 2016
Microsoft office 2019
Microsoft office 2021
Microsoft office 2024
Microsoft office 365
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: 2026-08-28T17:54:42.701Z

Reserved: 2026-06-16T15:03:49.681Z

Link: CVE-2026-55136

cve-icon Vulnrichment

Updated: 2026-07-14T19:03:25.631Z

cve-icon NVD

Status : Analyzed

Published: 2026-07-14T18:18:20.437

Modified: 2026-07-15T17:16:53.633

Link: CVE-2026-55136

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-07T10:15:03Z

Weaknesses