Cyber Resilience

CVE-2021-34809

CriticalRCE

Published: 18 June 2021

Published
18 June 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.0164 82.3th percentile
Risk Priority 21 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-34809 is a critical-severity Command Injection (CWE-77) vulnerability in Synology Download Station. Its CVSS base score is 9.9 (Critical).

Operationally, ranked in the top 17.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-77

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

synology
download station
≤ 3.8.16-3566

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References