How severe is CVE-2016-2351?

CVE-2016-2351 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-2016-2351 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-2351?

CVE-2016-2351 affects Accellion File Transfer Appliance. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-2351?

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-2016-2351 published?

CVE-2016-2351 was published on 2016-05-07 and last updated on 2026-06-17.

CVE-2016-2351

CVE-2016-2351 is a critical-severity vulnerability in Accellion File Transfer Appliance with a CVSS 3.x base score of 9.8. 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-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Accellion File Transfer Appliance
Published: 2016-05-07
Last modified: 2026-06-17

Description

SQL injection vulnerability in home/seos/courier/security_key2.api on the Accellion File Transfer Appliance (FTA) before FTA_9_12_40 allows remote attackers to execute arbitrary SQL commands via the client_id parameter.

Frequently asked questions

What is CVE-2016-2351?: SQL injection vulnerability in home/seos/courier/security_key2.api on the Accellion File Transfer Appliance (FTA) before FTA_9_12_40 allows remote attackers to execute arbitrary SQL commands via the client_id parameter.
How severe is CVE-2016-2351?: CVE-2016-2351 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-2016-2351 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-2351?: CVE-2016-2351 affects Accellion File Transfer Appliance. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-2351?: 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-2016-2351 published?: CVE-2016-2351 was published on 2016-05-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:accellion:file_transfer_appliance:*:*:*:*:*:*:*:*

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