CVE-2026-58644
Microsoft SharePoint Remote Code Execution Vulnerability
KEVCRITICAL 9.8EPSS 15.9%
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
- Affected
- Microsoft · Microsoft SharePoint Enterprise Server 2016 · Microsoft SharePoint Server 2019 · Microsoft SharePoint Server Subscription Edition
- CVSS v3.1 MICROSOFT
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 15.87% chance of exploitation in the next 30 days, 97th percentile
- CISA KEV
- added 2026-07-16
- Nuclei
- critical · CWE-502
- Published
- 2026-07-14
- Updated
- 2026-10-08