CVE-2016-6406

Name: CVE-2016-6406
Creator: NVD / NIST
Published: 2016-09-22T22:59:22.193+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.57%

Last modified Jun 17, 2026

CVE-2016-6406 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 3.57% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

3.57%

87.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-264

Affected Software

Vendor	Product	Versions
Cisco	Email Security Appliance Firmware	9.1.2-023
Cisco	Email Security Appliance Firmware	9.1.2-028
Cisco	Email Security Appliance Firmware	9.1.2-036
Cisco	Email Security Appliance Firmware	9.7.2-046
Cisco	Email Security Appliance Firmware	9.7.2-047
Cisco	Email Security Appliance Firmware	9.7.2-054
Cisco	Email Security Appliance Firmware	10.0.0-124
Cisco	Email Security Appliance Firmware	10.0.0-125

References

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160922-esaVendor Advisory
http://www.securityfocus.com/bid/93116Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036881
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160922-esaVendor Advisory
http://www.securityfocus.com/bid/93116Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036881

Timeline

Published: Sep 22, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-6406?

How severe is CVE-2016-6406?

Severity scoring for CVE-2016-6406 is pending analysis. The EPSS model estimates a 3.57% probability of exploitation in the next 30 days.

How do I fix CVE-2016-6406?

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-2016-6406?

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

Scan your code now

Source: NVD / NIST