How severe is CVE-2015-6909?

CVE-2015-6909 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2015-6909 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6909?

CVE-2015-6909 affects Synology Download Station. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-6909?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-6909 published?

CVE-2015-6909 was published on 2015-09-11 and last updated on 2026-06-17.

CVE-2015-6909

CVE-2015-6909 is a medium-severity vulnerability in Synology Download Station with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Synology Download Station
Published: 2015-09-11
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in the "Create download task via file upload" feature in Synology Download Station before 3.5-2962 allows remote attackers to inject arbitrary web script or HTML via the name element in the Info dictionary in a torrent file.

Frequently asked questions

What is CVE-2015-6909?: Cross-site scripting (XSS) vulnerability in the "Create download task via file upload" feature in Synology Download Station before 3.5-2962 allows remote attackers to inject arbitrary web script or HTML via the name element in the Info dictionary in a torrent file.
How severe is CVE-2015-6909?: CVE-2015-6909 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2015-6909 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6909?: CVE-2015-6909 affects Synology Download Station. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-6909?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6909 published?: CVE-2015-6909 was published on 2015-09-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:synology:download_station:*:*:*:*:*:*:*:*

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