CVE-2025-59249

HIGH

Microsoft Exchange Server - Privilege Escalation

Title source: llm

Description

Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

References (1)

[Vendor Advisory] https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59249

Scores

CVSS v3 8.8

EPSS 0.0015

EPSS Percentile 35.8%

Attack Vector NETWORK

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

Classification

CWE

CWE-1390

Status published

Affected Products (38)

microsoft/exchange_server < 15.02.2562.029

microsoft/exchange_server

microsoft/exchange_server

microsoft/exchange_server

microsoft/exchange_server

microsoft/exchange_server

microsoft/exchange_server

microsoft/exchange_server

microsoft/exchange_server

microsoft/exchange_server

microsoft/exchange_server

microsoft/exchange_server

microsoft/exchange_server

microsoft/exchange_server

microsoft/exchange_server

... and 23 more

Timeline

Published Oct 14, 2025

Tracked Since Feb 18, 2026