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HDX - Execution with Unnecessary Privileges

Vulnerability Summary

The Poly HDX Command Shell is susceptible to an escalation of privileges vulnerability that could lead to unauthorized system access and information disclosure. Poly made changes to the HDX software starting with the commercial software build to prevent this vulnerability by removing access to development modes and adding additional restrictions on what commands could be issued.


Last Update: 3/3/2022
Initial Public Release: 3/13/2013
Advisory ID:  PLYTV13-04

Products Affected
HDX 4000

Prior to and above
HDX 6000

Prior to and above
HDX 7000

Prior to and above
HDX 8000

Prior to and above
HDX 9000

Prior to and above

Poly recommends customers upgrade to firmware build or later.



For customers who cannot upgrade to a fixed version, administrators can:

  • Disable telnet on the HDX,
  • Disable control on the RS-232 Serial Ports

Please consult the HDX Administrator’s Guide for information and instructions on these options.


Any customer using an affected system who is concerned about this vulnerability within their deployment should contact Poly Technical Support(888) 248-4143, (916) 928-7561, or visit the Poly Support Site.



Poly would like to thank Moritz Jodeit & Mr. Jodeit of n.runs for reporting security vulnerabilities to us and for their coordinated disclosure.

Revision History
1.0 3/13/2013
Initial Release
2.0 3/3/2022
Format Changes

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