CVE-2016-6416

Name: CVE-2016-6416
Creator: NVD / NIST
Published: 2016-10-05T17:59:05.9+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.02%

Last modified Jun 17, 2026

CVE-2016-6416 is a vulnerability of currently unknown severity. The FTP service in Cisco AsyncOS on Email Security Appliance (ESA) devices 9.6.0-000 through 9.9.6-026, Web Security Appliance (WSA) devices 9.0.0-162 through 9.5.0-444, and Content Security Management Appliance (SMA) devices allows remote attackers to cause a denial of service via a flood of FTP traffic, aka Bug IDs CSCuz82907, CSCuz84330, and CSCuz86065.. EPSS estimates a 2.02% chance of exploitation in the next 30 days.

Description

The FTP service in Cisco AsyncOS on Email Security Appliance (ESA) devices 9.6.0-000 through 9.9.6-026, Web Security Appliance (WSA) devices 9.0.0-162 through 9.5.0-444, and Content Security Management Appliance (SMA) devices allows remote attackers to cause a denial of service via a flood of FTP traffic, aka Bug IDs CSCuz82907, CSCuz84330, and CSCuz86065.

Metrics

EPSS Probability

2.02%

78.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Cisco	Content Security Management Appliance	9.1.0
Cisco	Content Security Management Appliance	9.1.0-004
Cisco	Content Security Management Appliance	9.1.0-031
Cisco	Content Security Management Appliance	9.1.0-033
Cisco	Content Security Management Appliance	9.1.0-103
Cisco	Content Security Management Appliance	9.5.0
Cisco	Content Security Management Appliance	9.6.0
Cisco	Email Security Appliance	9.6.0-000
Cisco	Email Security Appliance	9.6.0-042
Cisco	Email Security Appliance	9.6.0-051
Cisco	Email Security Appliance	9.7.1-066
Cisco	Email Security Appliance	9.9.6-026
Cisco	Email Security Appliance	9.9_base
Cisco	Web Security Appliance	9.0.0-162
Cisco	Web Security Appliance	9.1.0-000
Cisco	Web Security Appliance	9.1.0-070
Cisco	Web Security Appliance	9.1_base
Cisco	Web Security Appliance	9.5.0-235
Cisco	Web Security Appliance	9.5.0-284
Cisco	Web Security Appliance	9.5.0-444
Cisco	Web Security Appliance	9.5_base

References

Timeline

Published: Oct 5, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-6416?

How severe is CVE-2016-6416?

Severity scoring for CVE-2016-6416 is pending analysis. The EPSS model estimates a 2.02% probability of exploitation in the next 30 days.

How do I fix CVE-2016-6416?

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.

Are you affected by CVE-2016-6416?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST