Risk Scores
CVSS v3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft Office 2019 for Mac 16.69.23010700 | ||
| Microsoft Office LTSC for Mac 2021 16.69.23010700 | ||
| Microsoft Office 2019 for Mac <16.69.23010700 | ||
| Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases | ||
| Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases | ||
| Microsoft Office LTSC for Mac 2021 <16.69.23010700 | ||
| Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases | ||
| Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases |
Timeline
- Jan 10, 2023 CVE Published
- Apr 20, 2026 Security Advisory
- Apr 20, 2026 Security Advisory
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21734 advisory
- https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-21734.json advisory
- https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1 url
- https://support.microsoft.com/lifecycle url
- https://www.first.org/cvss url
- https://go.microsoft.com/fwlink/p/?linkid=831049 fix
- https://docs.microsoft.com/en-us/officeupdates/office365-proplus-security-updates fix