Severity
CRITICAL
CVSS
9.8
EPSS
0.97408
Risk score
59.09
CISA KEV
Yes
PoC
No
Published
2023-03-14
Modified
2025-10-21
First seen
2026-08-07
Aliases
EUVD-2023-27497, GHSA-4778-Q233-JMH5
Products
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 LTSC 2021 16.0.1 <https://aka.ms/OfficeSecurityReleases, Microsoft:Microsoft Outlook 2013 Service Pack 1 15.0.0.0 <15.0.5537.1000, Microsoft:Microsoft Outlook 2016 16.0.0.0 <16.0.5387.1000, Microsoft:Office
Sources