What is CVE-2026-70217?

CVE-2026-70217 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Microsoft Office SharePoint Information Disclosure Vulnerability

Which CVE IDs does CVE-2026-70217 cover?

CVE-2026-70217 covers the following CVE IDs: CVE-2026-70217. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-70217?

CVE-2026-70217 has a CVSS v3 base score of 4.9, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-70217?

CVE-2026-70217 affects 1 product, including: Microsoft SharePoint Server Subscription Edition.

CVE-2026-70217HighCVSS 4.9

Microsoft Office SharePoint Information Disclosure Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

October 13, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-70217 →

📋 Description

Improper access control in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.

🎯 Affected products1

Microsoft SharePoint Server Subscription Edition

✅ Remediation

KB5002927 (Security Update) — fixed build 16.0.20326.20190

🔗 References (3)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70217
patchhttps://www.microsoft.com/en-us/download/details.aspx?id=108862
referencehttps://support.microsoft.com/help/5002927