BaseFortify

Publication date: 2025-10-14

Last updated on: 2026-06-15

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2025-10-14

Last Modified

2026-06-15

Generated

2026-07-06

AI Q&A

2025-10-14

EPSS Evaluated

2026-07-05

NVD

CVE-2025-59248

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	exchange_server	2016
microsoft	exchange_server	2016
microsoft	exchange_server	2016
microsoft	exchange_server	2016
microsoft	exchange_server	2016
microsoft	exchange_server	2016
microsoft	exchange_server	2016
microsoft	exchange_server	2016
microsoft	exchange_server	2016
microsoft	exchange_server	2016
microsoft	exchange_server	2019
microsoft	exchange_server	2016
microsoft	exchange_server	2019
microsoft	exchange_server	2016
microsoft	exchange_server	2019
microsoft	exchange_server	2019
microsoft	exchange_server	2016
microsoft	exchange_server	2016
microsoft	exchange_server	2016
microsoft	exchange_server	2016
microsoft	exchange_server	2019
microsoft	exchange_server	2019
microsoft	exchange_server	2019
microsoft	exchange_server	2016
microsoft	exchange_server	2016
microsoft	exchange_server	2019
microsoft	exchange_server	2016
microsoft	exchange_server	2019
microsoft	exchange_server	2016
microsoft	exchange_server	2016
microsoft	exchange_server	2019
microsoft	exchange_server	2016
microsoft	exchange_server	2019
microsoft	exchange_server	2016
microsoft	exchange_server	2019
microsoft	exchange_server	2019
microsoft	exchange_server	2019
microsoft	exchange_server_subscription_edition	to 15.02.2562.029 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-20	The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
CWE-NVD-CWE-noinfo

Attack-Flow Graph

Executive Summary

This vulnerability is an improper input validation issue in Microsoft Exchange Server that allows an unauthorized attacker to perform spoofing over a network. Spoofing means the attacker can impersonate another user or system by manipulating input data that the server does not properly validate.

Impact Analysis

This vulnerability can impact you by allowing an attacker to spoof identities on the network, potentially leading to unauthorized access, phishing attacks, or misleading communications that appear to come from trusted sources. This can compromise security and trust within your network environment.

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