CRITICALCVE-2026-20963Published Modified CNA microsoft
CVE-2026-20963: Microsoft SharePoint Remote Code Execution Vulnerability
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
Metrics
- CVSS v3.1
- 9.8
- Severity
- CRITICAL
- Fixed in
- 16.0.5535.1001
- Affected Products
- 3
Fix available
16.0.5535.100116.0.10417.2008316.0.19127.20442
Affected packages
- Microsoft / Microsoft SharePoint Enterprise Server 2016< 16.0.5535.1001 (from 16.0.0)
- Microsoft / Microsoft SharePoint Server 2019< 16.0.10417.20083 (from 16.0.0)
- Microsoft / Microsoft SharePoint Server Subscription Edition< 16.0.19127.20442 (from 16.0.0)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C