CVE-2025-64666EPSS p57.7%

CVE-2025-64666CVE-2025-64666

microsoft / exchange_server

Description

Improper input validation in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

Scoring

CVSS 7.5 ()
VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.98% probability of exploitation · percentile 57.7% · 2026-06-19T12:03:05Z
Last modified2026-06-15
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.