CVE-2021-47960

MEDIUM6.5

A files or directories accessible to external parties vulnerability in Synology SSL VPN Client before 1

Published Apr 10, 2026

Modified 1 weeks ago

Details

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.

References

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2021-47960

ADVISORY

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

CVSS Analysis

CVSS v3.1

6.5

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

RequiredUI:R

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

NoneI:N

Availability

NoneA:N

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

Weakness Type (CWE)

Other

CWE-552

Ecosystems

Timeline

PublishedApr 10, 2026

ModifiedApr 10, 2026