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Poly Systems – VxWorks OS “URGENT/11” Impact

Vulnerability Summary

Researchers at security vendor Armis Labs discovered 11 vulnerabilities in the Wind River Systems’ VxWorks® Operating System, which is used in certain Poly voice endpoints.  Dubbed “URGENT/11,” the vulnerabilities reside in VxWorks’ IPnet TCP/IP stack and impact all versions of the VxWorks® Operating System since version 6.5.



Additional details can be found at the following links listed below.


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

Last Update: 3/8/2022
Data Published: 12/19/2020
Advisory ID: PLYVC20-01
CVE ID: CVE-2019-12256
CVSS Score: 9.8
CVE ID: CVE-2019-12258
CVSS Score: 7.5
CVE ID: CVE-2019-12257
CVSS Score: 8.8
CVE ID: CVE-2019-12259
CVSS Score: 6.3
CVE ID: CVE-2019-12255
CVSS Score: 9.8
CVE ID: CVE-2019-12262
CVSS Score: 7.1
CVE ID: CVE-2019-12260
CVSS Score: 9.8
CVE ID: CVE-2019-12264
CVSS Score: 7.1
CVE ID: CVE-2019-12261
CVSS Score: 8.8
CVE ID: CVE-2019-12265
CVSS Score: 5.4
CVE ID: CVE-2019-12263
CVSS Score: 8.1
Product Affected
Polycom SoundPoint IP

UC Software 4.1

UC Software Rev AB
Polycom SoundStation IP

UC Software 4.1

UC Software Rev AB

Poly recommends customers upgrade to software version Rev AB or later.
Go to Poly Support to download Software.



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.


Revision History
1.0 12/19/2020 Initial Release
2.0 12/10/2021 Formatting changes and resource updates

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