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Critical severity9.9NVD Advisory· Published Feb 7, 2022· Updated Jun 17, 2026

CVE-2021-43928

CVE-2021-43928

Description

Improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability in mail sending and receiving component in Synology Mail Station before 20211105-10315 allows remote authenticated users to execute arbitrary commands via unspecified vectors.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Synology/Mail Station3 versions
    cpe:2.3:a:synology:mail_station:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:synology:mail_station:*:*:*:*:*:*:*:*range: <20211105
    • (no CPE)range: <20211105-10315
    • (no CPE)range: unspecified

Patches

Vulnerability mechanics

References

1

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