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CVE-2026-47298 Microsoft CVE debrief

CVE-2026-47298 is a HIGH severity vulnerability in Microsoft Office SharePoint. The vulnerability is caused by improper authorization, allowing an authorized attacker to execute code over a network. The Common Vulnerability Scoring System (CVSS) score for this vulnerability is 8. The vulnerability affects Microsoft SharePoint Server, specifically versions 2016, 2019, and Subscription.

Vendor
Microsoft
Product
Microsoft SharePoint Enterprise Server 2016
CVSS
HIGH 8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-12
Advisory published
2026-06-09
Advisory updated
2026-06-12

Who should care

Administrators and users of Microsoft Office SharePoint Server, particularly those using versions 2016, 2019, and Subscription.

Technical summary

The vulnerability is caused by improper authorization in Microsoft Office SharePoint, allowing an authorized attacker to execute code over a network. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

Defensive priority

HIGH

Recommended defensive actions

  • Apply the patches provided by Microsoft to fix the vulnerability.
  • Restrict access to sensitive areas of the SharePoint Server to only authorized users.
  • Monitor SharePoint Server logs for suspicious activity.

Evidence notes

The vulnerability is analyzed and has a CWE-285 weakness.

Official resources

CVE-2026-47298 was published on 2026-06-09T17:17:35.050Z and modified on 2026-06-12T16:00:20.983Z.