CVE-2026-64921EPSS p59.6%

CVE-2026-64921CVE-2026-64921

microsoft / sharepoint_server

Description

Missing authentication for critical function in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

Scoring

CVSS 8.8 ()
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.94% probability of exploitation · percentile 59.6% · 2026-10-06T12:00:23Z
Last modified2026-08-13
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.