Risk Scores
CVSS v3.1
7
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
EPSS Score
0.09%
25.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Office Deployment Tool | 1.0 |
| Microsoft | Office | |
| microsoft | sharepoint_server_2019 | 16.0.0 |
| microsoft | sharepoint_server_2016 | 16.0.0 |
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 |
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 |
| microsoft | sharepoint_server | 16.0.0 |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 |
| microsoft | office | 1.0 |
| microsoft | office_2016 | 16.0.0 |
| Microsoft | Microsoft Office 2016 | 16.0.0 |
Timeline
- Dec 4, 2025 CVE ID Reserved
- Jan 13, 2026 CVE Published
- Jan 13, 2026 PoC Published
- Jan 13, 2026 PoC Published
- Jan 14, 2026 EPSS Score
- Jan 14, 2026 PoC Published
- Jan 16, 2026 EPSS Score
- Jan 19, 2026 EPSS Score
- Jan 21, 2026 EPSS Score
- Jan 24, 2026 EPSS Score
- Jan 26, 2026 EPSS Score
- Jan 28, 2026 EPSS Score
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20953 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20949 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20956 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20946 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20955 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20950 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20957 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20944 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20952 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20943 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20948 advisory