Vulnerability Database

318,275

Total vulnerabilities in the database

CVE-2021-34809

Improper neutralization of special elements used in a command ('Command Injection') vulnerability in task management component in Synology Download Station before 3.8.16-3566 allows remote authenticated users to execute arbitrary code via unspecified vectors.

  • Published: Jun 18, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-34809
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 9.9
  • AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v2:

  • Severity: Medium
  • Score: 6.5
  • AV:N/AC:L/Au:S/C:P/I:P/A:P

CWEs:

OWASP TOP 10:

Software From Fixed in
synology / download_station - 3.8.16-3566