Improper access control in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

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

Type Values Removed Values Added
Metrics ssvc

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


Tue, 13 Jan 2026 18:15:00 +0000

Type Values Removed Values Added
Description Improper access control in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
Title Microsoft Excel Security Feature Bypass Vulnerability
First Time appeared Microsoft
Microsoft 365 Apps
Microsoft office 2021
Microsoft office 2024
Microsoft office Macos 2021
Microsoft office Macos 2024
Weaknesses CWE-284
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_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 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: 2026-01-13T18:39:57.071Z

Reserved: 2025-12-04T20:04:16.339Z

Link: CVE-2026-20949

cve-icon Vulnrichment

Updated: 2026-01-13T18:39:46.466Z

cve-icon NVD

Status : Received

Published: 2026-01-13T18:16:22.487

Modified: 2026-01-13T18:16:22.487

Link: CVE-2026-20949

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses