Technology · SignalWire
SignalWire Freeswitch vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 28 vulnerabilities in SignalWire Freeswitch: 0 in the last 7 days and 19 in the last 90 days, 5 of them critical and 1 exploited in the wild. The most recent, CVE-2026-116790, was published on 5 November 2026. 19 vulnerabilities in the last four weeks, up from none in the four before. 3 critical against 0, 1 exploited in the wild against 0.
- Last 7 days
- 0
- Last 90 days
- 19
- Critical, all time
- 5
- Exploited in the wild
- 1
About SignalWire Freeswitch
FreeSWITCH is a scalable, open-source cross-platform telephony platform designed to route and interconnect popular communication protocols using audio, video, text, or any other form of media.
Latest SignalWire Freeswitch vulnerabilities
- CVE-2026-116790: FreeSWITCH ICE integrity validation bypasscriticalCVSS 9.1
- CVE-2026-116789: FreeSWITCH DTLS fingerprint validation bypass in server rolehighCVSS 7.4
- CVE-2026-116788: FreeSWITCH integer underflow in XML decodehighCVSS 8.2
- CVE-2026-116787: FreeSWITCH mod_event_socket denial of service via Content-LengthhighCVSS 7.5
- CVE-2026-116786: FreeSWITCH command injection via SIP REFER URI parametershighCVSS 8.8
- CVE-2026-116785: FreeSWITCH WebSocket frame length heap overflowcriticalCVSS 9.1
- CVE-2026-116784: FreeSWITCH out-of-bounds read in RTCP NACK handlerhighCVSS 7.5
- CVE-2026-116783: FreeSWITCH buffer overflow in mod_spandsp UDPTL FEC parsinghighCVSS 8.2
- CVE-2026-116782: FreeSWITCH RTMP AMF parsing null dereferencehighCVSS 7.5
- CVE-2026-116781: FreeSWITCH WebSocket frame parser out-of-bounds writemediumCVSS 5.3
- CVE-2026-116779: FreeSWITCH command injection via SIP MESSAGE chat protocolcriticalexploited in the wildCVSS 9.8EPSS 1.3%
- CVE-2026-116572: FreeSWITCH stack buffer overflow in mod_sofia Contact display namemediumCVSS 6.5
- CVE-2026-116571: FreeSWITCH stack buffer overflow in mod_rtmp H.264 handlingmediumCVSS 5.9
- CVE-2026-116569: FreeSWITCH MSRP buffer underflow in msrp_parse_bufferhighCVSS 7.5
- CVE-2026-116568: FreeSWITCH H.264 NAL unit buffer overread in mod_rtmphighCVSS 7.5
- CVE-2026-116567: FreeSWITCH stack buffer overflow in RTMP control message handlerhighCVSS 7.5
- CVE-2026-115928: FreeSWITCH stack buffer overflow in SDES-SRTP parserhighCVSS 7.5
- CVE-2026-116574: FreeSWITCH XML escape encoder buffer overrun in switch_xml_ampencode()mediumCVSS 5.9
- CVE-2026-116573: FreeSWITCH mod_sofia stack buffer overflow in dialog notificationsmediumCVSS 6.5
- CVE-2026-49848: FreeSWITCH mod_verto userVariables injection in check_authmediumCVSS 4.3
- CVE-2026-49847: FreeSWITCH stack overflow in cJSON parser via mod_vertohighCVSS 7.5
- CVE-2026-49843: FreeSWITCH improper authentication in mod_verto allows session evictionmediumCVSS 5.3
- CVE-2026-49842: SignalWire FreeSWITCH bandwidth amplification in mod_vertohighCVSS 7.5
- CVE-2026-49841: SignalWire FreeSWITCH heap overflow in mod_verto HTTP POST handlercriticalCVSS 9.8
- CVE-2026-49840: SignalWire FreeSWITCH heap buffer overflow in libesl Content-Length parsingcriticalCVSS 9.1
Most severe SignalWire Freeswitch vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-116779: FreeSWITCH command injection via SIP MESSAGE chat protocolcriticalexploited in the wildCVSS 9.8EPSS 1.3%
- CVE-2026-49841: SignalWire FreeSWITCH heap overflow in mod_verto HTTP POST handlercriticalCVSS 9.8
- CVE-2026-116790: FreeSWITCH ICE integrity validation bypasscriticalCVSS 9.1
- CVE-2026-116785: FreeSWITCH WebSocket frame length heap overflowcriticalCVSS 9.1
- CVE-2026-49840: SignalWire FreeSWITCH heap buffer overflow in libesl Content-Length parsingcriticalCVSS 9.1
- CVE-2026-116786: FreeSWITCH command injection via SIP REFER URI parametershighCVSS 8.8
- CVE-2026-116788: FreeSWITCH integer underflow in XML decodehighCVSS 8.2
- CVE-2026-116783: FreeSWITCH buffer overflow in mod_spandsp UDPTL FEC parsinghighCVSS 8.2
- CVE-2026-116787: FreeSWITCH mod_event_socket denial of service via Content-LengthhighCVSS 7.5
- CVE-2026-116784: FreeSWITCH out-of-bounds read in RTCP NACK handlerhighCVSS 7.5
Vulnerabilities per week
19 vulnerabilities in the last four weeks, up from none in the four before. 3 critical against 0, 1 exploited in the wild against 0. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 19 | 3 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many SignalWire Freeswitch vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/freeswitch)<a href="https://junglewise.ai/threats/technologies/freeswitch"><img src="https://junglewise.ai/threats/technologies/freeswitch/badge.svg" alt="SignalWire Freeswitch vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/freeswitch.json, and this page as text at https://junglewise.ai/threats/technologies/freeswitch.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "SignalWire Freeswitch vulnerabilities", https://junglewise.ai/threats/technologies/freeswitch, 13 November 2026.