Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
patch
Microsoft Excel Remote Code Execution Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44818
Scores
CVSS v3
7.0
EPSS
0.0026
EPSS Percentile
18.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/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-362
Status
published
Products (19)
microsoft/365_apps
(2 CPE variants)
microsoft/excel
2016 (2 CPE variants)
Microsoft/Microsoft 365 Apps for Enterprise
16.0.1 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Excel 2016
16.0.0.0 - 16.0.5556.1001
Microsoft/Microsoft Office 2019
19.0.0 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Office 365 for Mac
-
Microsoft/Microsoft Office 365 for Mac
1.0.0 - 16.110.26061317
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
-
... and 9 more
Published
Jun 09, 2026
Tracked Since
Jun 09, 2026