CVE-2026-45472

Microsoft Office Remote Code Execution Vulnerability

State: Published
Severity: 8.4 High
Published: Jun 9, 2026
Updated: Sep 24, 2026
Reserved: May 12, 2026

Description

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

Scores

CVSS	Score	Vector	Source
3.1	8.4 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
Microsoft 365 Apps for EnterpriseMicrosoft	16.0.1 to before https://aka.ms/OfficeSecurityReleasesAffected
Microsoft Office 2016Microsoft	16.0.0 to before 16.0.5556.1005Affected
Microsoft Office 2019Microsoft	19.0.0 to before https://aka.ms/OfficeSecurityReleasesAffected
Microsoft Office 365 for MacMicrosoft	1.0.0 to before 16.110.26061317Affected
Microsoft Office for AndroidMicrosoft	16.0.1 to before 16.0.20131.20024Affected
Microsoft Office LTSC 2021Microsoft	16.0.1 to before https://aka.ms/OfficeSecurityReleasesAffected
Microsoft Office LTSC 2024Microsoft	16.0.0 to before https://aka.ms/OfficeSecurityReleasesAffected
Microsoft Office LTSC for Mac 2021Microsoft	16.0.1 to before 16.110.26061317Affected
Microsoft Office LTSC for Mac 2024Microsoft	16.0.0 to before 16.110.26061317Affected

References

Microsoft Office Remote Code Execution Vulnerabilityvendor-advisorypatch

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