CVE-2026-20953

🔴 HIGH

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Published
Jan 13, 2026
Last Modified
Jan 14, 2026
Views
6
Bookmarks
0

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Affected Products (12)

microsoft - 365_apps

Version: -

microsoft - 365_apps

Version: -

microsoft - office

Version: 2016

microsoft - office

Version: 2016

microsoft - office

Version: 2019

microsoft - office

Version: 2019

microsoft - office_long_term_servicing_channel

Version: 2021

microsoft - office_long_term_servicing_channel

Version: 2021

microsoft - office_long_term_servicing_channel

Version: 2021

microsoft - office_long_term_servicing_channel

Version: 2024

microsoft - office_long_term_servicing_channel

Version: 2024

microsoft - office_long_term_servicing_channel

Version: 2024

CVSS Scores

CVSS 3.1 8.4
8.4
HIGH
CVSS 2.0 8.4

Additional Information

Source
secure@microsoft.com
State
Analyzed

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