CVE-2019-11355: Polycom Hdx System Software

High severity, CVSS 7.2. EPSS: 1.1% chance of exploitation in the next 30 days.

An issue was discovered in Poly (formerly Polycom) HDX 3.1.13. A feature exists that allows the creation of a server / client certificate, or the upload of the user certificate, on the administrator's page. The value received from the user is the factor value of a shell script on the equipment. By entering a special character (such as a single quote) in a CN or other CSR field, one can insert a command into a factor value. A system command can be executed as root.

Affected products

• Polycom Hdx System Software: up to and including 3.1.13

Published 2020-03-12. Last modified 2026-06-17.