Description

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

INFO

Published Date :

2026-01-13T17:56:46.499Z

Last Modified :

2026-01-20T23:03:55.876Z

Source :

microsoft
AFFECTED PRODUCTS

The following products are affected by CVE-2026-20946 vulnerability.

Vendors Products
Microsoft
  • 365 Apps
  • Excel
  • Excel 2016
  • Office
  • Office 2019
  • Office 2021
  • Office 2024
  • Office Long Term Servicing Channel
  • Office Macos 2021
  • Office Macos 2024
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-20946.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20946 cve-icon cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact