CVE-2025-58107
Received Received - Intake

Cleartext Data Exposure in Microsoft Exchange ActiveSync on Samsung Devices

Publication date: 2026-03-02

Last updated on: 2026-03-02

Assigner: MITRE

Description
In Microsoft Exchange through 2019, Exchange ActiveSync (EAS) configurations on on-premises servers may transmit sensitive data from Samsung mobile devices in cleartext, including the user's name, e-mail address, device ID, bearer token, and base64-encoded password.

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Meta Information

Published
2026-03-02
Last Modified
2026-03-02
Generated
2026-07-06
AI Q&A
2026-03-02
EPSS Evaluated
2026-07-05
NVD
CVE-2025-58107
EUVD
EUVD-2025-208168

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft exchange 2019

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-319 The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

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Executive Summary

This vulnerability affects Microsoft Exchange servers through 2019 that use Exchange ActiveSync (EAS) configurations on on-premises servers. It causes sensitive data from Samsung mobile devices to be transmitted in cleartext. The exposed data includes the user's name, e-mail address, device ID, bearer token, and base64-encoded password.

Impact Analysis

The vulnerability can lead to the exposure of sensitive user information such as names, email addresses, device identifiers, authentication tokens, and passwords. Since this data is transmitted in cleartext, it can be intercepted by attackers, potentially leading to unauthorized access to user accounts, identity theft, and compromise of corporate or personal information.

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