All vulnerabilities
CVE-2026-108452

Microsoft Office SharePoint Remote Code Execution Vulnerability

Microsoft Microsoft SharePoint Server Subscription EditionApplications & CMS
Open in ThreatlineRecord JSON
CVSS
8.8High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.64%Chance of exploitation activity in the next 30 days, higher than 49% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in16.0.20326.20190Fixed versionCVE List
Published15 Oct 2026Updated 23 Oct 2026CVE List

What fixes it

  • 16.0.20326.20190Microsoft SharePoint Server Subscription EditionCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Vendor and government advisories 1

Vendors that say their products are affected, and agencies that issued alerts. Check each for the fixed release of the product you run.

Reports 1

1 outlet mention it. Reports are not confirmation; each links to its source.

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.

Text from CVE List

Affected versions 1

  • Microsoft SharePoint Server Subscription Editionaffected: 16.0.0 before 16.0.20326.20190CVE List

References 1