CVE-2021-47960

CVSS 6.5 MEDIUMEPSS 0.2%CWE-552

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.5EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

10 Apr 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

Synology · Synology SSL VPN Client

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References

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