What is CVE-2026-102860?

CVE-2026-102860 is a high-severity vulnerability in Microsoft Sharepoint Server Subscription Edition, classified under Improper Access Control. CVSS score: 8.8/10. Published 2026-10-13.

How severe is CVE-2026-102860?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Microsoft Sharepoint Server Subscription Edition

CVE-2026-102860

Improper access control in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

Published 2026-10-13 · last modified 2026-10-13.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Microsoft Sharepoint Server Subscription Edition

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

Microsoft Office SharePoint Elevation of Privilege Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-102860?: CVE-2026-102860 is a high-severity vulnerability in Microsoft Sharepoint Server Subscription Edition, classified under Improper Access Control. CVSS score: 8.8/10. Published 2026-10-13.
How severe is CVE-2026-102860?: High severity. CVSS v3 base score is 8.8 out of 10.