CVE-2021-47961CWE-256

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…

High · published April 10, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
24.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00322 · 24.0th percentile
Weakness
CWE-256 · Plaintext Storage of a Password
Published
2026-04-10T09:22Z
EPSS history
Timeline
  • 10 APR 09:22Z
    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…
    cvelistv5