CVE-2026-45659
published 2026-05-22CVE-2026-45659: Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | microsoft_sharepoint_enterprise_server_2016 | >= 16.0.0 < 16.0.5552.1002 | 16.0.5552.1002 |
| microsoft | microsoft_sharepoint_server_2019 | >= 16.0.0 < 16.0.10417.20128 | 16.0.10417.20128 |
| microsoft | microsoft_sharepoint_server_subscription_edition | >= 16.0.0 < 16.0.19725.20280 | 16.0.19725.20280 |
| microsoft | sharepoint_server | < 16.0.19725.20280 | 16.0.19725.20280 |
| microsoft | sharepoint_server | — | — |
| microsoft | sharepoint_server | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
cvelistv5v3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C