Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
History

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

Type Values Removed Values Added
Description Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Title Microsoft Word 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-122
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_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
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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-08-11T17:05:42.656Z

Updated: 2026-08-12T14:48:53.773Z

Reserved: 2026-07-01T21:14:44.620Z

Link: CVE-2026-58651

cve-icon Vulnrichment

Updated: 2026-08-11T19:19:24.141Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-08-11T17:18:05.550

Modified: 2026-08-12T05:17:58.287

Link: CVE-2026-58651

cve-icon Redhat

No data.