What’s Vulnerable › Vulnerabilities

CVE-2016-6416

• Severity: medium (CVSS 5.9 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-10-05 · updated 2026-06-17
• Weakness: CWE-119

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.

Affected products

• Cisco Content Security Management Appliance (SMA): 9.1.0, 9.1.0-004, 9.1.0-031, 9.1.0-033, 9.1.0-103, 9.5.0 (+1)
• Cisco Email Security Appliance (ESA): 9.6.0-000, 9.6.0-042, 9.6.0-051, 9.7.1-066, 9.9.6-026, 9.9_base
• Cisco Web Security Appliance (WSA): 9.0.0-162, 9.1.0-000, 9.1.0-070, 9.1_base, 9.5.0-235, 9.5.0-284 (+2)

References

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928-aos
• http://www.securityfocus.com/bid/93198
• http://www.securitytracker.com/id/1036915
• http://www.securitytracker.com/id/1036916
• http://www.securitytracker.com/id/1036917
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928-aos
• http://www.securityfocus.com/bid/93198
• http://www.securitytracker.com/id/1036915
• http://www.securitytracker.com/id/1036916
• http://www.securitytracker.com/id/1036917

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