CVE-2021-47961

Published: Apr 10, 2026

Modified: Apr 10, 2026

PUBLISHED

CVSS v3.1

8.1

HIGH

Description

A plaintext storage of a password vulnerability in Synology SSL VPN Client before 1.4.5-0684 allows remote attackers to access or influence the user's PIN code due to insecure storage. This may lead to unauthorized VPN configuration and potential interception of subsequent VPN traffic when combined with user interaction.

Vendor	Product	Versions
Synology	Synology SSL VPN Client	affected `* - < 1.4.5-0684`

Weaknesses (CWE)

CWE-256

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

References

Synology-SA-26:05 Synology SSL VPN Client

vendor-advisory

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CVE-2021-47961

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References