VDB
msrc_CVE-2026-20959
msrc_CVE-2026-20959
PUBLISHED
CVSS 4.599999904632568 MEDIUM
Risk Scores
CVSS 3.1
4.599999904632568
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft SharePoint Server Subscription Edition 16.0.19127.20442 | ||
| Microsoft SharePoint Server 2019 16.0.10417.20083 | ||
| Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001 | ||
| Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001 | ||
| Microsoft SharePoint Server 2019 <16.0.10417.20083 | ||
| Microsoft SharePoint Server Subscription Edition <16.0.19127.20442 |
Timeline
- Jan 13, 2026 CVE Published
- Sep 7, 2026 Security Advisory
- Sep 7, 2026 Security Advisory
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20959 advisory
- https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-20959.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://support.microsoft.com/help/5002828 fix
- https://support.microsoft.com/help/5002825 fix
- https://support.microsoft.com/help/5002822 fix