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Multiple Video Conferencing Products - Improper Restriction of Operations within the Bounds of a Memory Buffer

Vulnerability Summary

A new remote code execution vulnerability has been identified in Group Series. The vulnerability allows a remote attacker to execute arbitrary code which leads to the compromise of the system.  



CVE 2018-15128 - Improper Restriction of Operations within the Bounds of a Memory Buffer

An issue was discovered in Polycom Group Series and earlier, HDX 3.1.12 and earlier, and Pano 1.1.1 and earlier. A remote code execution vulnerability exists in the content sharing functionality because of a Buffer Overflow via crafted packets.

Poly released a firmware update to address this vulnerability.  There is no workaround.


Last Update: 3/14/2022
Initial Public Release: 11/1/2018
Advisory ID:  PLYTV18-11

CVE ID: CCVE-2018-15128
CVSS Score: 9.8

Product Affected
Group Series





6.1.7 and later


3.1.13 and later


1.2.1 and later

Poly recommends customers upgrade to the respective firmware builds or later. 



There is no workaround.


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 Frank Cozijnsen from KPN for reporting security vulnerabilities to us and for their coordinated disclosure.

Revision History
1.0 11/1/2018 Initial Release
2.0 3/14/2022 Format Changes

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