CVE-2026-45471

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-2026-45471

Scores

CVSS v3 7.8
EPSS 0.0030
EPSS Percentile 21.2%
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-822
Status published
Products (11)
Microsoft/Microsoft 365 Apps for Enterprise 16.0.1 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Office 2019 19.0.0 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Office 365 for Mac -
Microsoft/Microsoft Office LTSC 2021 16.0.1 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Office LTSC 2024 16.0.0 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Office LTSC for Mac 2021 -
Microsoft/Microsoft Office LTSC for Mac 2024 -
Microsoft/Microsoft SharePoint Enterprise Server 2016 16.0.0 - 16.0.5556.1005
Microsoft/Microsoft SharePoint Server 2019 16.0.0 - 16.0.10417.20153
Microsoft/Microsoft SharePoint Server Subscription Edition 16.0.0 - 16.0.19725.20384
... and 1 more
Published Jun 09, 2026
Tracked Since Jun 09, 2026