ByteOS Network

CVE Vulnerability Details :

CVE-2021-47960

PUBLISHED

More Info Official Page

Assigner-synology

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

Published At-10 Apr, 2026 | 09:21

Updated At-10 Apr, 2026 | 12:43

▼CVE Numbering Authority (CNA)

A files or directories accessible to external parties vulnerability in Synology SSL VPN Client before 1.4.5-0684 allows remote attackers to access files within the installation directory via a local HTTP server bound to the loopback interface. By leveraging user interaction with a crafted web page, attackers may retrieve sensitive files such as configuration files, certificates, and logs, leading to information disclosure.

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-552	Files or Directories Accessible to External Parties

Type: CWE

CWE ID: CWE-552

Description: Files or Directories Accessible to External Parties

Metrics

Version	Base score	Base severity	Vector
3.1	6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Version: 3.1

Base score: 6.5

Base severity: MEDIUM

Vector:

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