Description
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Published: 2026-10-13
Score: 8.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 13 Oct 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Tue, 13 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Title Microsoft Office 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-121
CWE-20
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': 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'}

Subscriptions

Microsoft 365 Apps Office 2021 Office 2024 Office 365 Office Macos 2021 Office Macos 2024
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-13T22:19:15.675Z

Reserved: 2026-08-31T23:21:53.300Z

Link: CVE-2026-83891

cve-icon Vulnrichment

Updated: 2026-10-13T20:20:44.346Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-13T19:20:40.100

Modified: 2026-10-13T21:19:01.540

Link: CVE-2026-83891

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-121

    Stack-based Buffer Overflow

  • CWE-20

    Improper Input Validation