How severe is CVE-2026-69409?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Microsoft Sharepoint Server Subscription Edition

CVE-2026-69409

Execution with unnecessary privileges in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.

Published 2026-09-08 · last modified 2026-09-09.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.010 (62.3th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 62nd percentile — 62.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-250

References

Microsoft Office SharePoint Information Disclosure Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-69409?: CVE-2026-69409 is a medium-severity vulnerability in Microsoft Sharepoint Server Subscription Edition, classified under CWE-250. CVSS score: 6.5/10. Published 2026-09-08.
How severe is CVE-2026-69409?: Medium severity. CVSS v3 base score is 6.5 out of 10.