CVE-2023-21763

HIGH

Microsoft Exchange Server - Privilege Escalation

Title source: llm

Microsoft Exchange Server Elevation of Privilege Vulnerability

CVSS v3 7.8

EPSS 0.0048

EPSS Percentile 65.2%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-426

Status published

Products (2)

microsoft/exchange_server 2016 cumulative_update_23

microsoft/exchange_server 2019 cumulative_update_11 (2 CPE variants)

Published Jan 10, 2023

Tracked Since Feb 18, 2026