Improper input validation in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Conclusion & alert: CVE-2025-59228 is rated Moderate Risk (48.3/100): CVSS High severity, with low exploitation likelihood (EPSS 0.16%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-24 | 0.13% | 0.16% | +0.04% |
| 2 | 2026-03-12 | 0.26% | 0.13% | -0.13% |
| 3 | 2026-02-13 | — | 0.26% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | sharepoint_server | < 16.0.19127.20262 | cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:* |
| microsoft | sharepoint_server | 2016 | cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:* |
| microsoft | sharepoint_server | 2019 | cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59228 | Vendor Advisory |