Is CVE-2019-11355 actively exploited?

No active exploitation of CVE-2019-11355 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-11355 be exploited remotely?

Yes. CVE-2019-11355 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-11355?

CVE-2019-11355 has a CVSS score of 7.2 (HIGH).

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HIGH

CVE-2019-11355

CWE-78Published: March 12, 2020· Updated: Jun 17, 2026

7.2

CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2019-11355 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.2.