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Vulnerability record · CVE-2018-19911 · published 6 December 2018

CVE-2018-19911: Freeswitch command injection vulnerability

Freeswitch · Freeswitch

FreeSWITCH through 1.8.2, when mod_xml_rpc is enabled, allows remote attackers to execute arbitrary commands via the api/system or txtapi/system (or api/bg_system or txtapi/bg_system) query string on TCP port 8080, as demonstrated by an api/system?calc URI. This can also be exploited via CSRF. Alternatively, the default password of works for the freeswitch account can sometimes be used.

7.5 CVSS 3.0 High EPSS 2.7% · top 14.7% CWE-77 · Command injectionCWE-352 · Cross-site request forgery
7.5CVSS 3.0 base score, v2 7.6
2.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

FreeSWITCH through 1.8.2, when mod_xml_rpc is enabled, allows remote attackers to execute arbitrary commands via the api/system or txtapi/system (or api/bg_system or txtapi/bg_system) query string on TCP port 8080, as demonstrated by an api/system?calc URI. This can also be exploited via CSRF. Alternatively, the default password of works for the freeswitch account can sometimes be used.

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/iSafeBlue/freeswitch_rce/blob/master/README-en.md ExploitThird Party Advisory
https://github.com/iSafeBlue/freeswitch_rce/blob/master/freeswitch_rce.py ExploitThird Party Advisory
https://github.com/iSafeBlue/freeswitch_rce/blob/master/README-en.md ExploitThird Party Advisory
https://github.com/iSafeBlue/freeswitch_rce/blob/master/freeswitch_rce.py ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-49841Freeswitch heap-based buffer overflow vulnerabilityFreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation tha…EPSS 0.61%9.8CVE-2019-19492Freeswitch hard-coded credentials vulnerabilityFreeSWITCH 1.6.10 through 1.10.1 has a default password in event_socket.conf.xml.EPSS 29%9.1CVE-2026-49840Freeswitch improper input validation vulnerabilityFreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation tha…EPSS 0.49%7.5CVE-2026-49842Freeswitch uncontrolled resource consumption vulnerabilityFreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation tha…EPSS 0.58%7.5CVE-2026-49847Freeswitch vulnerabilityFreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation tha…EPSS 0.53%7.5CVE-2026-49475Freeswitch improper input validation vulnerabilityFreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation tha…EPSS 0.49%7.5CVE-2026-45771Freeswitch vulnerabilityFreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation tha…EPSS 0.49%7.5CVE-2023-40018Freeswitch out-of-bounds write vulnerabilityFreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation tha…EPSS 0.99%

Source: NIST National Vulnerability Database (record CVE-2018-19911), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.