CVE-2026-45457

HIGH

Microsoft Word Remote Code Execution Vulnerability

Title source: cna
STIX 2.1

Description

Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Microsoft Word Remote Code Execution Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45457

Scores

CVSS v3 7.8
EPSS 0.0032
EPSS Percentile 23.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-125
Status published
Products (8)
microsoft/365_apps (2 CPE variants)
Microsoft/Microsoft 365 Apps for Enterprise 16.0.1 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Office 365 for Mac -
Microsoft/Microsoft Office LTSC for Mac 2021 -
Microsoft/Microsoft Office LTSC for Mac 2024 -
microsoft/microsoft_365
microsoft/office_2021
microsoft/office_2024
Published Jun 09, 2026
Tracked Since Jun 09, 2026