How severe is CVE-2016-3109?

CVE-2016-3109 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-3109 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 28% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-3109?

CVE-2016-3109 affects Shopware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-3109?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2016-3109 published?

CVE-2016-3109 was published on 2017-04-21 and last updated on 2026-06-17.

CVE-2016-3109

CVE-2016-3109 is a critical-severity vulnerability in Shopware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 28% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 28% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Shopware
Published: 2017-04-21
Last modified: 2026-06-17

Description

The backend/Login/load/ script in Shopware before 5.1.5 allows remote attackers to execute arbitrary code.

Frequently asked questions

What is CVE-2016-3109?: The backend/Login/load/ script in Shopware before 5.1.5 allows remote attackers to execute arbitrary code.
How severe is CVE-2016-3109?: CVE-2016-3109 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-3109 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 28% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-3109?: CVE-2016-3109 affects Shopware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-3109?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-3109 published?: CVE-2016-3109 was published on 2017-04-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:shopware:shopware:*:*:*:*:*:*:*:*

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