CVE-2021-47961

8.1 highEPSS 0.3%

High (8.1) in synology ssl vpn client. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.1 high

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 25% of CVEs (scores of 2026-10-31)
CWE: CWE-256
Published: 2026-04-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

synology:ssl_vpn_client

References

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

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