Information disclosure in Accellion FTP Server

CVE-2016-9499

Accellion FTP server prior to version FTA_9_12_220 only returns the username in the server response if the username is invalid. An attacker may use this information to determine valid user accounts and enumerate them.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.077 (94.4th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2016-9499: held from 0.078 to 0.077.

EPSS over last 30 days · oldest: 0.078 · newest: 0.077 · change: -0.001

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2016-9499?
CVE-2016-9499 is a medium-severity vulnerability in Accellion FTP Server, classified under Observable Response Discrepancy. CVSS score: 5.3/10. Published 2018-07-13.
How severe is CVE-2016-9499?
Medium severity. CVSS v3 base score is 5.3 out of 10.