Vulnerability · Published Oct 13, 2026 · Assigned by microsoft
CVE-2026-70217Microsoft Office SharePoint Information Disclosure Vulnerability
Medium 4.9
In plain English
A medium-severity improper access control in Microsoft SharePoint Server Subscription Edition from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).
Severity (CVSS 3.1)4.9Medium
Exploit odds (30 days)1.0%top 37.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper access control in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 – before 16.0.20326.20190 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
References
- Microsoft Office SharePoint Information Disclosure Vulnerability vendor-advisory, patch