ByteOS Network

CVE Vulnerability Details :

CVE-2021-47961

PUBLISHED

More Info Official Page

Assigner-synology

Assigner Org ID-db201096-a0cc-46c7-9a55-61d9e221bf01

Published At-10 Apr, 2026 | 09:22

Updated At-10 Apr, 2026 | 12:42

▼CVE Numbering Authority (CNA)

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.

Affected Products

Vendor

Synology, Inc.

Product

Synology SSL VPN Client

Default Status

affected

Versions

Affected

From * before 1.4.5-0684 (semver)

Problem Types

Type	CWE ID	Description
CWE	CWE-256	Plaintext Storage of a Password

Type: CWE

CWE ID: CWE-256

Description: Plaintext Storage of a Password

Metrics

Version	Base score	Base severity	Vector
3.1	8.1	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Version: 3.1

Base score: 8.1

Base severity: HIGH

Vector:

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

Credits

finder

Laurent Sibilla (https://www.linkedin.com/in/lsibilla/)

References

Hyperlink	Resource
https://www.synology.com/en-global/security/advisory/Synology_SA_26_05	vendor-advisory

Hyperlink: https://www.synology.com/en-global/security/advisory/Synology_SA_26_05

Resource:

vendor-advisory

▼Authorized Data Publishers (ADP)

CISA ADP Vulnrichment

Affected Products

Affected

Problem Types

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References

Affected Products

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References