CVE-2025-59248

HIGH

Microsoft Exchange Server - Spoofing via Improper Input Validation

Title source: llm
STIX 2.1

Description

Improper input validation in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

References (1)

Core 1
Core References

Scores

CVSS v3 7.5
EPSS 0.0017
EPSS Percentile 38.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-20
Status published
Products (3)
microsoft/exchange_server 2016 (23 CPE variants)
microsoft/exchange_server 2019 (14 CPE variants)
microsoft/exchange_server < 15.02.2562.029
Published Oct 14, 2025
Tracked Since Feb 18, 2026