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                            CERT-Renater

                Note d'Information No. 2026/VULN587
_____________________________________________________________________

DATE                : 04/06/2026

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): HP Poly Unified Communication Software.

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https://support.hp.com/us-en/document/ish_15052661-15052687-16/hpsbpy04083
_____________________________________________________________________


Poly Voice – Possible Remote Control of Certain Poly Devices

In certain scenarios when the admin has enabled Interactive
Connectivity Establishment (ICE), a buffer overflow could enable
remote code execution on Poly Voice products on the Linux platform.

Severity
    Critical

HP Reference
    HPSBPY04083 Rev. 1

Release date
    June 1, 2026

Last updated
    June 1, 2026

Category
    Poly

Potential Security Impact
    Remote Code Execution


Relevant Common Vulnerabilities and Exposures (CVE) List
Reported by: Stephen Fewer, Senior Principal Security Researcher at
Rapid7

List of CVE IDs

CVE ID     CVSS       Severity     Vector   

CVE-2026-0826    9.2     Critical
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Learn more about CVSS 4.0 base metrics, which range from 0 to 10.

PSR-2026-0005


Resolution

HP Poly recommends admins disable ICE connectivity when not required.

All affected Poly Voice devices need to be updated to the latest UCS
release using HP Poly Lens HP Poly Lens Device Management | HP®
Official Site.

HP recommends keeping your system up to date with the latest firmware
and software.


Affected products
Identify the affected products.


Affected products

Product Name     Updated Firmware Version

VVX              UCS 6.4.8 - Pending

Trio 8300        UCS 8.1.7

Trio 8500        UCS 7.2.8

Trio 8800        UCS 7.2.8


Revision history

This document has been revised according to the information below.


List of versions

Version          Description                 Date

1                Initial Release             June 1, 2026


Additional information

Follow these links for additional information.

Third-party security patches
    Third party security patches that are to be installed on systems
running HP software products should be applied in accordance with the
customer's patch management policy.

Support
    For issues about implementing the recommendations of this Security
Bulletin, visit http://www.hp.com/go/contacthp to learn about your HP
support options.

Report
    To report a potential security vulnerability with any HP supported
product, send email to: hp-security-alert@hp.com.

Security bulletin archive
    To view released Security Bulletins, visit
https://support.hp.com/security-bulletins.

It is strongly recommended that security related information being
communicated to HP be encrypted using PGP, especially exploit information.

Download HP’s security-alert PGP key


Legal information

System management and security procedures must be reviewed frequently to
maintain system integrity. HP is continually reviewing and enhancing the
security features of software products to provide customers with current
secure solutions.

HP is broadly distributing this Security Bulletin in order to bring to the
attention of users of the affected HP products the important security
information contained in this Security Bulletin. HP recommends that all
users determine the applicability of this information to their individual
situations and take appropriate action. HP does not warrant that this
information is necessarily accurate or complete for all user situations and,
consequently, HP will not be responsible for any damages resulting from
user's use or disregard of the information provided in this Security
Bulletin. To the extent permitted by law, HP disclaims all warranties,
either express or implied, including the warranties of merchantability
and fitness for a particular purpose, title and non-infringement.

© Copyright 2026 HP Development Company, L.P.

HP Inc. (HP) shall not be liable for technical or editorial errors or
omissions contained herein. The information provided is provided "as is"
without warranty of any kind. To the extent permitted by law, neither HP
nor its affiliates, subcontractors or suppliers will be liable for
incidental, special or consequential damages including downtime cost;
lost profits; damages relating to the procurement of substitute products
or services; or damages for loss of data, or software restoration. The
information in this document is subject to change without notice.
"HP Inc.," "HP" and the names of HP products referenced herein are
trademarks of HP Inc. or its affiliates in the United States and other
countries. Other product and company names mentioned herein may be
trademarks of their respective owners.


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