CVE-2019-11355

Name: CVE-2019-11355
Creator: NVD / NIST
Published: 2020-03-12T21:15:12.78+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 1.08%

Last modified Jun 17, 2026

CVE-2019-11355 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. 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. EPSS estimates a 1.08% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.2/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.08%

60.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Polycom	Hdx System Software	<= 3.1.13

References

https://support.polycom.com/content/dam/polycom-support/global/documentation/hdx-3-1-14-advisory.pdfPatch, Vendor Advisory
https://support.polycom.com/content/dam/polycom-support/global/documentation/hdx-3-1-14-advisory.pdfPatch, Vendor Advisory

Timeline

Published: Mar 12, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-11355?

How severe is CVE-2019-11355?

CVE-2019-11355 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 1.08% probability of exploitation in the next 30 days.

How do I fix CVE-2019-11355?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-11355?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST