CVE-2023-52951

Analyzed Analyzed - Analysis Complete

Cleartext Credential Transmission in Synology Note Station Client

Publication date: 2026-06-03

Last updated on: 2026-06-05

Assigner: Synology Inc.

Description

A cleartext transmission of sensitive information vulnerability in Synology Note Station Client before 2.2.4-703 allows man-in-the-middle attackers to obtain user credential.

CVSS Scores

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Meta Information

Published

2026-06-03

Last Modified

2026-06-05

Generated

2026-07-14

AI Q&A

2026-06-03

EPSS Evaluated

2026-07-12

NVD

CVE-2023-52951

EUVD

EUVD-2023-60579

Affected Vendors & Products

Vendor	Product	Version / Range
synology	note_station_client	to 2.2.4-703 (exc)

Helpful Resources

Exploitability

CWE

KEV

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.

Attack-Flow Graph

Executive Summary

This vulnerability involves the cleartext transmission of sensitive information in Synology Note Station Client versions before 2.2.4-703. Because the data, including user credentials, is sent without encryption, a man-in-the-middle attacker can intercept and obtain these credentials.

Compliance Impact

The vulnerability involves cleartext transmission of sensitive information, specifically user credentials, which can be intercepted by man-in-the-middle attackers.

Such exposure of sensitive data could potentially lead to non-compliance with data protection regulations like GDPR and HIPAA, which require protection of personal and sensitive information during transmission.

However, the provided information does not explicitly state the impact on compliance with these standards.

Mitigation Strategies

To mitigate this vulnerability, you should update Synology Note Station Client to version 2.2.4-703 or later, where the cleartext transmission of sensitive information has been addressed.

Impact Analysis

The vulnerability can allow an attacker positioned between the user and the server to capture user credentials. This can lead to unauthorized access to the user's account and potentially sensitive data stored within the Synology Note Station Client.

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