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CVE-2026-55045

nvd nist
Published: Jul 14, 2026Modified: Jul 16, 2026

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8.4
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 2.5 / Impact: 5.9
Source: secure@microsoft.com (Secondary)

Description

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

Affected (16)

Microsoft
7 products
365 Apps
Microsoft 365
Office 2016
Office 2019
Office 2021
Office 2024
Sharepoint Server
Configuration A
16 vulnerable
Vulnerable SoftwareAffected Versions
Microsoft
365 Apps
All versions
365 Apps
All versions
Microsoft 365
All versions
Microsoft
Office 2016
All versions
Office 2016
All versions
Microsoft
Office 2019
All versions
Office 2019
All versions
Microsoft
Office 2021
All versions
Office 2021
All versions
Office 2021
All versions
Microsoft
Office 2024
All versions
Office 2024
All versions
Office 2024
All versions
Microsoft
Sharepoint Server
Before 16.0.19725.20434
Sharepoint Server
Version 2016
Sharepoint Server
Version 2019

Related CWEs

CWE-125
Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.

References (1)

Source: secure@microsoft.com
Vendor AdvisoryPatch

Timeline

No history available yet.