CVE-2019-9972

Name: CVE-2019-9972
Creator: NVD / NIST
Published: 2022-06-07T18:15:10.24+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.61%

Last modified Jun 17, 2026

CVE-2019-9972 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. PhoneSystem Terminal in 3CX Phone System (Debian based installation) 16.0.0.1570 allows an authenticated attacker to run arbitrary commands with the phonesystem user privileges because of "<space><space> followed by <shift><enter>" mishandling.. EPSS estimates a 1.61% chance of exploitation in the next 30 days.

Description

PhoneSystem Terminal in 3CX Phone System (Debian based installation) 16.0.0.1570 allows an authenticated attacker to run arbitrary commands with the phonesystem user privileges because of "<space><space> followed by <shift><enter>" mishandling.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.61%

72.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-77

Affected Software

Vendor	Product	Versions
3cx	Phone System Firmware	16.0.0.1570
Debian	Debian Linux	All versions

References

https://www.gosecure.net/blogThird Party Advisory
https://www.gosecure.net/blog/2022/05/31/security-advisory-multiple-vulnerabilities-impact-3cx-phone-system/Exploit, Third Party Advisory
https://www.gosecure.net/blogThird Party Advisory
https://www.gosecure.net/blog/2022/05/31/security-advisory-multiple-vulnerabilities-impact-3cx-phone-system/Exploit, Third Party Advisory

Timeline

Published: Jun 7, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-9972?

How severe is CVE-2019-9972?

CVE-2019-9972 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.61% probability of exploitation in the next 30 days.

How do I fix CVE-2019-9972?

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-2019-9972?

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

Scan your code now

Source: NVD / NIST