CVE-2016-9499
UnknownEPSS 7.77%
Last modified
CVE-2016-9499 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 7.77% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Accellion | Ftp Server | < fta_9_12_220 |
References
- https://www.kb.cert.org/vuls/id/745607Third Party Advisory, US Government Resource
- https://www.qualys.com/2016/12/06/qsa-2016-12-06/qsa-2016-12-06.pdfExploit, Third Party Advisory
- https://www.securityfocus.com/bid/96154Third Party Advisory, VDB Entry
- https://www.kb.cert.org/vuls/id/745607Third Party Advisory, US Government Resource
- https://www.qualys.com/2016/12/06/qsa-2016-12-06/qsa-2016-12-06.pdfExploit, Third Party Advisory
- https://www.securityfocus.com/bid/96154Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2016-9499?
Severity scoring for CVE-2016-9499 is pending analysis. The EPSS model estimates a 7.77% probability of exploitation in the next 30 days.
How do I fix CVE-2016-9499?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Are you affected by CVE-2016-9499?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
