What’s Vulnerable › Vulnerabilities

CVE-2019-9972

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-06-07 · updated 2026-06-17
• Weakness: CWE-77

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.

Affected products

• 3CX Phone System Firmware: 16.0.0.1570
• Debian Linux: all versions

References

• https://www.gosecure.net/blog
• https://www.gosecure.net/blog/2022/05/31/security-advisory-multiple-vulnerabilities-impact-3cx-phone-system/
• https://www.gosecure.net/blog
• https://www.gosecure.net/blog/2022/05/31/security-advisory-multiple-vulnerabilities-impact-3cx-phone-system/

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