Microsoft Office Remote Code Execution Vulnerability

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Summary

CVECVE-2026-32190
StatePUBLISHED
Assignermicrosoft
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-14 18:17:25 UTC
Updated2026-04-17 15:10:35 UTC
DescriptionUse after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Risk And Classification

Primary CVSS: v3.1 8.4 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.000570000 probability, percentile 0.178950000 (date 2026-04-21)

Problem Types: CWE-416 | CWE-416 CWE-416: Use After Free

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.4HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS8.4HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Microsoft Microsoft 365 Apps For Enterprise affected 16.0.1 https://aka.ms/OfficeSecurityReleases custom 32-bit Systems, x64-based Systems
CNA Microsoft Microsoft Office 2016 affected 16.0.0 16.0.5548.1000 custom 32-bit Systems, x64-based Systems
CNA Microsoft Microsoft Office 2019 affected 19.0.0 https://aka.ms/OfficeSecurityReleases custom 32-bit Systems, x64-based Systems
CNA Microsoft Microsoft Office LTSC 2021 affected 16.0.1 https://aka.ms/OfficeSecurityReleases custom 32-bit Systems, x64-based Systems
CNA Microsoft Microsoft Office LTSC 2024 affected 16.0.0 https://aka.ms/OfficeSecurityReleases custom 32-bit Systems, x64-based Systems
CNA Microsoft Microsoft Office LTSC For Mac 2021 affected 16.0.1 16.108.26041219 custom Not specified
CNA Microsoft Microsoft Office LTSC For Mac 2024 affected 16.0.0 16.108.26041219 custom Not specified

References

ReferenceSourceLinkTags
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32190 [email protected] msrc.microsoft.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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