Vulnerability · Published Oct 15, 2026 · Assigned by microsoft
CVE-2026-108452Microsoft Office SharePoint Remote Code Execution Vulnerability
High 8.8
In plain English
A high-severity path traversal 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 0.8% (higher than 57% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.8%top 42.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code 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-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- Microsoft Office SharePoint Remote Code Execution Vulnerability vendor-advisory, patch