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TI-2016-05498 Aliases CVE-2016-6416GHSA-7cpm-6ch9-5qff

The FTP service in Cisco AsyncOS on Email Security Appliance (ESA) devices 9.6.0-000…

Priority LOW 30CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.0202 81st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 21

CPEVersionsRoleVendor
cpe:2.3:a:cisco:content_security_management_appliance:9.1.0:*:*:*:*:*:*:*9.1.0VulnerableCisco
cpe:2.3:a:cisco:content_security_management_appliance:9.1.0-004:*:*:*:*:*:*:*9.1.0-004VulnerableCisco
cpe:2.3:a:cisco:content_security_management_appliance:9.1.0-031:*:*:*:*:*:*:*9.1.0-031VulnerableCisco
cpe:2.3:a:cisco:content_security_management_appliance:9.1.0-033:*:*:*:*:*:*:*9.1.0-033VulnerableCisco
cpe:2.3:a:cisco:content_security_management_appliance:9.1.0-103:*:*:*:*:*:*:*9.1.0-103VulnerableCisco
cpe:2.3:a:cisco:content_security_management_appliance:9.5.0:*:*:*:*:*:*:*9.5.0VulnerableCisco
cpe:2.3:a:cisco:content_security_management_appliance:9.6.0:*:*:*:*:*:*:*9.6.0VulnerableCisco
cpe:2.3:a:cisco:email_security_appliance:9.6.0-000:*:*:*:*:*:*:*9.6.0-000VulnerableCisco
cpe:2.3:a:cisco:email_security_appliance:9.6.0-042:*:*:*:*:*:*:*9.6.0-042VulnerableCisco
cpe:2.3:a:cisco:email_security_appliance:9.6.0-051:*:*:*:*:*:*:*9.6.0-051VulnerableCisco
  • cpe:2.3:a:cisco:content_security_management_appliance:9.1.0:*:*:*:*:*:*:* Versions 9.1.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:content_security_management_appliance:9.1.0-004:*:*:*:*:*:*:* Versions 9.1.0-004 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:content_security_management_appliance:9.1.0-031:*:*:*:*:*:*:* Versions 9.1.0-031 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:content_security_management_appliance:9.1.0-033:*:*:*:*:*:*:* Versions 9.1.0-033 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:content_security_management_appliance:9.1.0-103:*:*:*:*:*:*:* Versions 9.1.0-103 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:content_security_management_appliance:9.5.0:*:*:*:*:*:*:* Versions 9.5.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:content_security_management_appliance:9.6.0:*:*:*:*:*:*:* Versions 9.6.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:email_security_appliance:9.6.0-000:*:*:*:*:*:*:* Versions 9.6.0-000 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:email_security_appliance:9.6.0-042:*:*:*:*:*:*:* Versions 9.6.0-042 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:email_security_appliance:9.6.0-051:*:*:*:*:*:*:* Versions 9.6.0-051 Vulnerable ·Cisco
Show 11 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:cisco:email_security_appliance:9.7.1-066:*:*:*:*:*:*:*9.7.1-066VulnerableCisco
cpe:2.3:a:cisco:email_security_appliance:9.9.6-026:*:*:*:*:*:*:*9.9.6-026VulnerableCisco
cpe:2.3:a:cisco:email_security_appliance:9.9_base:*:*:*:*:*:*:*9.9_baseVulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.0.0-162:*:*:*:*:*:*:*9.0.0-162VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.1.0-000:*:*:*:*:*:*:*9.1.0-000VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.1.0-070:*:*:*:*:*:*:*9.1.0-070VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.1_base:*:*:*:*:*:*:*9.1_baseVulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.5.0-235:*:*:*:*:*:*:*9.5.0-235VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.5.0-284:*:*:*:*:*:*:*9.5.0-284VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.5.0-444:*:*:*:*:*:*:*9.5.0-444VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.5_base:*:*:*:*:*:*:*9.5_baseVulnerableCisco
  • cpe:2.3:a:cisco:email_security_appliance:9.7.1-066:*:*:*:*:*:*:* Versions 9.7.1-066 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:email_security_appliance:9.9.6-026:*:*:*:*:*:*:* Versions 9.9.6-026 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:email_security_appliance:9.9_base:*:*:*:*:*:*:* Versions 9.9_base Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.0.0-162:*:*:*:*:*:*:* Versions 9.0.0-162 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.1.0-000:*:*:*:*:*:*:* Versions 9.1.0-000 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.1.0-070:*:*:*:*:*:*:* Versions 9.1.0-070 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.1_base:*:*:*:*:*:*:* Versions 9.1_base Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.5.0-235:*:*:*:*:*:*:* Versions 9.5.0-235 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.5.0-284:*:*:*:*:*:*:* Versions 9.5.0-284 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.5.0-444:*:*:*:*:*:*:* Versions 9.5.0-444 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.5_base:*:*:*:*:*:*:* Versions 9.5_base Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-6416
  2. 2026-10-03 Alias added: GHSA-7cpm-6ch9-5qff

References

Advisory 1

  • TI-2016-01993 The DES and Triple DES ciphers, as used in the TLS, SSH, and IPSec protocols and other… CVSS 3.1HIGH 7.5
  • TI-2014-01669 The End User Safelist/Blocklist (aka SLBL) service in Cisco AsyncOS Software for Email… CVSS 2.0HIGH 8.5
  • TI-2015-05308 Cisco AsyncOS before 8.5.7-042, 9.x before 9.1.0-032, 9.1.x before 9.1.1-023, and 9.5.x… CVSS 2.0HIGH 7.8
  • TI-2013-04730 The web framework on Cisco Web Security Appliance (WSA), Email Security Appliance (ESA)… CVSS 2.0HIGH 7.8
  • TI-2019-01602 Cisco Email Security Appliance and Cisco Content Security Management Appliance Denial of Service Vulnerability CVSS 3.1MEDIUM 5.3
  • TI-2020-02726 Cisco ESA, Cisco WSA, and Cisco SMA GUI Denial of Service Vulnerability CVSS 3.1MEDIUM 5.3
See all 26 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences