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TI-2016-05488 Aliases CVE-2016-6406GHSA-vp5v-r76g-m4mx

Cisco IronPort AsyncOS 9.1.2-023, 9.1.2-028, 9.1.2-036, 9.7.2-046, 9.7.2-047, 9.7.2-054…

Priority MEDIUM 48CWE-264Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-264.

Summary

Cisco IronPort AsyncOS 9.1.2-023, 9.1.2-028, 9.1.2-036, 9.7.2-046, 9.7.2-047, 9.7.2-054, 10.0.0-124, and 10.0.0-125 on Email Security Appliance (ESA) devices, when Enrollment Client before 1.0.2-065 is installed, allows remote attackers to obtain root access via a connection to the testing/debugging interface, aka Bug ID CSCvb26017.

Why it matters now

EPSS 0.03574 89th 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 · 8

CPEVersionsRoleVendor
cpe:2.3:o:cisco:email_security_appliance_firmware:9.1.2-023:*:*:*:*:*:*:*9.1.2-023VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:9.1.2-028:*:*:*:*:*:*:*9.1.2-028VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:9.1.2-036:*:*:*:*:*:*:*9.1.2-036VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:9.7.2-046:*:*:*:*:*:*:*9.7.2-046VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:9.7.2-047:*:*:*:*:*:*:*9.7.2-047VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:9.7.2-054:*:*:*:*:*:*:*9.7.2-054VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.0-124:*:*:*:*:*:*:*10.0.0-124VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.0-125:*:*:*:*:*:*:*10.0.0-125VulnerableCisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:9.1.2-023:*:*:*:*:*:*:* Versions 9.1.2-023 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:9.1.2-028:*:*:*:*:*:*:* Versions 9.1.2-028 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:9.1.2-036:*:*:*:*:*:*:* Versions 9.1.2-036 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:9.7.2-046:*:*:*:*:*:*:* Versions 9.7.2-046 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:9.7.2-047:*:*:*:*:*:*:* Versions 9.7.2-047 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:9.7.2-054:*:*:*:*:*:*:* Versions 9.7.2-054 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.0-124:*:*:*:*:*:*:* Versions 10.0.0-124 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.0-125:*:*:*:*:*:*:* Versions 10.0.0-125 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-6406
  2. 2026-10-03 Alias added: GHSA-vp5v-r76g-m4mx

References

Advisory 1

  • TI-2018-11013 Cisco Email Security Appliance Memory Corruption Denial of Service Vulnerability CVSS 3.1HIGH 8.6
  • TI-2019-12004 Clam AntiVirus (ClamAV) Software Email Parsing Vulnerability CVSS 3.1HIGH 7.5
  • TI-2019-01575 Cisco Email Security Appliance Header Injection Vulnerability 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-2019-09501 Cisco Email Security Appliance Filter Bypass Vulnerability CVSS 3.1HIGH 7.5
  • TI-2017-04429 Improper input validation in Cisco Email Security Appliance CVSS 3.0HIGH 7.5
See all 26 →

Sources

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