What is the CVSS score of CVE-2023-52951?

CVE-2023-52951 has a CVSS 3.1 base score of 5.9 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.0%.

Is there a patch available for CVE-2023-52951?

Yes, a patch is available for CVE-2023-52951. Update the affected software to the latest version immediately.

Note Station Client CVE-2023-52951

EUVD-2023-60579 MEDIUM

Cleartext Transmission of Sensitive Information (CWE-319)

2026-06-03 security@synology.com

GHSA-qcc6-8w82-xq69

Information Disclosure Synology Note Station Client

5.9

CVSS 3.1 · Vendor: synology

Severity by source

Vendor (synology) PRIMARY

5.9 MEDIUM

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

Primary rating from Vendor (synology) · only source for this CVE.

CVSS VectorVendor: synology

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Patch available

Jun 03, 2026 - 16:01 EUVD

CVE Published

Jun 03, 2026 - 14:16 cve.org

MEDIUM 5.9

DescriptionCVE.org

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.

AnalysisAI

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. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required.

Technical ContextAI

This vulnerability is classified under CWE-319. 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. Affected products include: Synology Note Station Client. Version information: before 2.2.4.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.