CVE-2026-45471
Detail
Description
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
CNA: Microsoft Corporation
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-822
Untrusted Pointer Dereference
Microsoft Corporation
Change History
5 change records found show changes
CVE Modified by Microsoft Corporation
6/19/2026 5:16:51 PM
Action
Type
Old Value
New Value
Changed
Affected
Record truncated, showing 2048 of 2181 characters.
View Entire Change Record [{"vendor":"Microsoft","product":"Microsoft 365 Apps for Enterprise","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"16.0.1","lessThan":"https://aka.ms/OfficeSecurityReleases","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office 2019","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"19.0.0","lessThan":"https://aka.ms/OfficeSecurityReleases","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office 365 for Mac","versions":[{"version":"-","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office LTSC 2021","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"16.0.1","lessThan":"https://aka.ms/OfficeSecurityReleases","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office LTSC 2024","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"16.0.0","lessThan":"https://aka.ms/OfficeSecurityReleases","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office LTSC for Mac 2021","versions":[{"version":"-","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office LTSC for Mac 2024","versions":[{"version":"-","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft SharePoint Enterprise Server 2016","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","lessThan":"16.0.5556.1005","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft SharePoint Server 2019","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","lessThan":"16.0.10417.20153","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft SharePoint Server Subscription Edition","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","lessThan":"16.0.19725.20384","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Word 2016","platforms":["32-bit Sys
Record truncated, showing 2048 of 2351 characters.
View Entire Change Record [{"vendor":"Microsoft","product":"Microsoft 365 Apps for Enterprise","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"16.0.1","lessThan":"https://aka.ms/OfficeSecurityReleases","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office 2019","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"19.0.0","lessThan":"https://aka.ms/OfficeSecurityReleases","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office 365 for Mac","versions":[{"version":"1.0.0","lessThan":"16.110.26061317","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office LTSC 2021","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"16.0.1","lessThan":"https://aka.ms/OfficeSecurityReleases","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office LTSC 2024","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"16.0.0","lessThan":"https://aka.ms/OfficeSecurityReleases","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office LTSC for Mac 2021","versions":[{"version":"16.0.1","lessThan":"16.110.26061317","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office LTSC for Mac 2024","versions":[{"version":"16.0.0","lessThan":"16.110.26061317","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft SharePoint Enterprise Server 2016","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","lessThan":"16.0.5556.1005","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft SharePoint Server 2019","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","lessThan":"16.0.10417.20153","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft SharePoint Server Subscription Edition","platforms":["x64-based Systems"],"versions":[{"ve
Initial Analysis by NIST
6/17/2026 3:36:55 PM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*
*cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*
*cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*
*cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*
*cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x64:*
*cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x86:*
*cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x86:*
*cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x64:*
*cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:* versions up to (excluding) 16.0.19725.20384
*cpe:2.3:a:microsoft:microsoft_365:-:*:*:*:*:macos:*:*
*cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x64:*
*cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x86:*
*cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:macos:-:*
*cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x64:*
*cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x86:*
*cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:macos:-:*
Added
Reference Type
Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45471 Types: Vendor Advisory
CVE Modified by CISA-ADP
6/17/2026 6:52:06 AM
Action
Type
Old Value
New Value
Added
SSVC
{"timestamp":"2026-06-10T03:57:21.698686Z","id":"CVE-2026-45471","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}
CVE Modified by Microsoft Corporation
6/17/2026 6:52:06 AM
Action
Type
Old Value
New Value
Added
Affected
Record truncated, showing 2048 of 2181 characters.
View Entire Change Record [{"vendor":"Microsoft","product":"Microsoft 365 Apps for Enterprise","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"16.0.1","lessThan":"https://aka.ms/OfficeSecurityReleases","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office 2019","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"19.0.0","lessThan":"https://aka.ms/OfficeSecurityReleases","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office 365 for Mac","versions":[{"version":"-","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office LTSC 2021","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"16.0.1","lessThan":"https://aka.ms/OfficeSecurityReleases","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office LTSC 2024","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"16.0.0","lessThan":"https://aka.ms/OfficeSecurityReleases","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office LTSC for Mac 2021","versions":[{"version":"-","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Office LTSC for Mac 2024","versions":[{"version":"-","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft SharePoint Enterprise Server 2016","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","lessThan":"16.0.5556.1005","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft SharePoint Server 2019","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","lessThan":"16.0.10417.20153","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft SharePoint Server Subscription Edition","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","lessThan":"16.0.19725.20384","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Word 2016","platforms":["32-bit Sys
New CVE Received from Microsoft Corporation
6/09/2026 1:17:21 PM
Action
Type
Old Value
New Value
Added
Description
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Added
CVSS V3.1
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Added
CWE
CWE-822
Added
Reference
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45471
Quick Info
CVE Dictionary Entry: CVE-2026-45471 NVD
Published Date: 06/09/2026 NVD
Last Modified: 06/19/2026
Source: Microsoft Corporation
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