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

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Wed, 05 Aug 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft microsoft 365 Apps For Enterprise
Vendors & Products Microsoft microsoft 365 Apps For Enterprise

Tue, 04 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Mon, 03 Aug 2026 23:30:00 +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 Excel Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft 365 Apps
Microsoft excel 2016
Microsoft office 2019
Microsoft office 2021
Microsoft office 2024
Weaknesses CWE-416
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_2024:*:*:*:*:long_term_servicing_channel:*:*:*
Vendors & Products Microsoft
Microsoft 365 Apps
Microsoft excel 2016
Microsoft office 2019
Microsoft office 2021
Microsoft office 2024
References
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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-08-10T17:21:28.776Z

Reserved: 2026-07-14T21:13:55.099Z

Link: CVE-2026-62870

cve-icon Vulnrichment

Updated: 2026-08-04T17:22:07.736Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-04T00:17:37.813

Modified: 2026-08-09T14:32:17.837

Link: CVE-2026-62870

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-05T09:45:06Z

Weaknesses