What is CVE-2016-2351?

CVE-2016-2351 is a critical-severity vulnerability in Accellion File Transfer Appliance, classified under SQL Injection. CVSS score: 9.8/10. Published 2016-05-07.

How severe is CVE-2016-2351?

Critical severity. CVSS v3 base score is 9.8 out of 10.

SQL Injection in Accellion File Transfer Appliance

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.

Vulnerability class: SQL Injection

Published 2016-05-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.016 (74.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Accellion File Transfer Appliance

Weakness classification (CWE)

CWE-89 — SQL Injection

References

devco.re/blog/2016/04/21/how-I-hacked-facebook-and-found-someones-backdoor-scri… (Exploit)
www.kb.cert.org/vuls/id/505560 (US Government Resource, Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2016-2351?: CVE-2016-2351 is a critical-severity vulnerability in Accellion File Transfer Appliance, classified under SQL Injection. CVSS score: 9.8/10. Published 2016-05-07.
How severe is CVE-2016-2351?: Critical severity. CVSS v3 base score is 9.8 out of 10.