CVE-2026-56164CISA KEVEPSS p62.0%

CVE-2026-56164Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability

Microsoft / SharePoint Server

Description

Microsoft SharePoint contains a missing authentication for critical function vulnerability that allows an unauthorized attacker to elevate privileges over a network.

Scoring

CVSS 5.3 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS1.01% probability of exploitation · percentile 62.0% · 2026-10-06T12:00:23Z
Last modified2026-07-14

CISA KEV entry

Added to KEV: 2026-07-14

Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.