Freeswitch vulnerabilities1 known to be exploited.
Freeswitch has 12 published vulnerabilities across 1 product in our catalogue. 1 of them is on the list of flaws known to be exploited, so criminals are using them now. The most affected product is Freeswitch, with 12. If you run Freeswitch software, patch the exploited flaws first.
The most recent Freeswitch flaw added to the known-exploited list is CVE-2026-116779, on 9 November 2026. We keep watching the known-exploited list.
Which Freeswitch products have the most vulnerabilities?
Freeswitch leads with 12 published vulnerabilities. Open a product to see its versions and which of its flaws criminals are already using.
Which Freeswitch vulnerabilities are being exploited?
1 flaw is on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 9.8SignalWire FreeSwitch Code Injection Vulnerability
SignalWire FreeSwitch contains a code injection vulnerability that permits configuration and credential disclosure, arbitrary call control, and command execution.
Which Freeswitch flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- 29%CVE-2019-19492Critical
FreeSWITCH 1.6.10 through 1.10.1 has a default password in event_socket.conf.xml.
- 4.7%CVE-2015-7392High
Heap-based buffer overflow in the parse_string function in libs/esl/src/esl_json.c in FreeSWITCH before 1.4.23 and 1.6.x before 1.6.2 allows remote attackers to execute arbitrary code via a trailing \u in a json...
- 3.8%CVE-2021-37624High
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware.
- 2.7%CVE-2013-2238Medium
Multiple buffer overflows in the switch_perform_substitution function in switch_regex.c in FreeSWITCH 1.2 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via vectors...
- 2.7%CVE-2018-19911High
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,...
- 2.5%CVE-2021-41105High
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware.
- 2.5%
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware.
- 1.7%CVE-2021-41157Medium
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware.
- 1.7%CVE-2021-41145High
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware.
- 1.5%CVE-2023-51443High
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware.
All Freeswitch products we track.
1 products, most vulnerabilities first. Find the ones you run, then open a product to see its versions and exploited flaws.
Running Freeswitch? We'll keep checking.
Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.
- Tell us what you runPick your software from a list, or let us work it out from your website.
- We match it to every flawOver 400,000 published flaws, checked against your list.
- Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
- Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.
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1 flaw being exploited affects software Acme tracks
SignalWire FreeSwitch contains a code injection vulnerability that permits configuration and credential disclosure, arbitrary call control, and command execution.
- Matched to
- Freeswitch on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
Our catalogue lists 12 published vulnerabilities across 1 product and 132 versions from Freeswitch. The most recent Freeswitch flaw added to the known-exploited list is CVE-2026-116779, on 9 November 2026.
1 Freeswitch vulnerability is on the list of flaws known to be exploited. The most recently added is CVE-2026-116779. The full list is on this page.
Freeswitch, with 12 published vulnerabilities. Its own page lists the ones known to be exploited.
Create a EdgeProtect account and track the Freeswitch products you run. We match them against every published flaw, give each one a risk score from 0 to 100 and tell you as soon as we spot one that affects you, by email, in the app or by webhook.