Microsoft security update for CVE-2026-109455 — Microsoft SharePoint Server Subscription
🔗 CVE IDs covered (1)
📋 Microsoft's advisory
EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109455. This page also shows what EchelonGraph holds for CVE-2026-109455, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.
🎯 Affected products1
- Microsoft SharePoint Server Subscription Edition
✅ Updates Microsoft lists: 1 update
1 row: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.
| KB article | Update | Fixed build |
|---|---|---|
| — | Security Update | 16.0.20326.20278 |
🧭 EchelonGraph on CVE-2026-109455
- EchelonGraph score
- 6.5 MEDIUM
- CISA KEV
- Not listed
- Fix status
- A fix is available — apply it.
Description from the CVE record (CVE.org), as published by its numbering authority
Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
Published by Microsoft Corporation, the CVE Numbering Authority that assigned CVE-2026-109455, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).