{"id":"EM-20261109-YBDK","url":"https://cyber.eventmonitor.net/incident/EM-20261109-YBDK/cve-2026-116779-signalwire-freeswitch-code-injection-vulnerability/","type":"cve","title":"SignalWire FreeSwitch Code Injection Vulnerability","subtitle":"CVE-2026-116779","subject":"CVE-2026-116779","status":"Confirmed","severity":"critical","affected":["SignalWire FreeSwitch"],"headline":"88 hours from first report to confirmed exploitation.","born":"2026-11-09T12:00:00.000Z","firstSignal":"2026-11-05T20:17:44.790Z","lastSignal":"2026-11-09T12:00:00.000Z","updated":"2026-11-09T20:54:22.269Z","revision":3,"life":[{"status":"Born","at":"2026-11-09T12:00:00.000Z","why":"second independent source: C1 CISA Known Exploited Vulnerabilities"},{"status":"Developing","at":"2026-11-09T12:00:00.000Z","why":"signals keep joining"},{"status":"Confirmed","at":"2026-11-09T12:00:00.000Z","why":"CISA added it to Known Exploited Vulnerabilities"}],"changeLog":[{"at":"2026-11-05T20:17:44.790Z","what":"First signal: C6 NVD CVE API 2.0"},{"at":"2026-11-09T12:00:00.000Z","what":"Born: second source, C1 CISA Known Exploited Vulnerabilities. Page EM-20261109-YBDK created."},{"at":"2026-11-09T12:00:00.000Z","what":"Status: Confirmed (CISA added it to Known Exploited Vulnerabilities)"},{"at":"2026-11-09T12:00:00.000Z","what":"Source joined: C2 CISA Cybersecurity Advisories"}],"stages":[{"name":"Disclosed","at":"2026-11-05T20:17:44.790Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-05T20:17:44.790Z","detail":"CVSS 9.8 · EPSS 1.3%"},{"name":"Exploited","at":"2026-11-09T12:00:00.000Z","detail":"C1 CISA KEV, fix by 2026-11-12"},{"name":"Advisories","at":"2026-11-09T12:00:00.000Z","detail":"1 government and CERT sources"},{"name":"Vendor Response","at":null,"detail":"None in sources yet"},{"name":"Resolved","at":null,"detail":"When fixed: KEV deadline 2026-11-12, then 14 quiet days"}],"signals":[{"at":"2026-11-05T20:17:44.790Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":4,"title":"CVE-2026-116779 (CVSS 9.8)","text":"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. Prior to 1.11.3, sofia_presence_handle_sip_i_message() split the To user of an inbound SIP MESSAGE on a plus sign and treated the left side as a chat protocol selector. Selecting the api chat proto reached switch_api_execute(), allowing a peer whose MESSAGE was accepted to run FreeSWITCH API commands, including operating-system command sinks, with the daemon's privileges. Inbound chat is enabled on the stock…","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116779"},{"at":"2026-11-09T12:00:00.000Z","source":"C1","sourceName":"CISA Known Exploited Vulnerabilities","role":"Exploited List","severity":3,"title":"CVE-2026-116779 added to KEV: SignalWire FreeSwitch Code Injection Vulnerability","text":"SignalWire FreeSwitch contains a code injection vulnerability that permits configuration and credential disclosure, arbitrary call control, and command execution.","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog"},{"at":"2026-11-09T12:00:00.000Z","source":"C2","sourceName":"CISA Cybersecurity Advisories","role":"Government","severity":3,"title":"CISA Adds Four Known Exploited Vulnerabilities to Catalog","text":"CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-102895 GPUStack Improper Authentication Vulnerability CVE-2026-116779 SignalWire FreeSwitch Code Injection Vulnerability CVE-2026-123158 OpenBSD OpenSSH Unexpected Status Code or Return Value Vulnerability CVE-2026-123218 IBM Aspera Faspex Incorrect…","url":"https://www.cisa.gov/news-events/alerts/2026/11/09/cisa-adds-four-known-exploited-vulnerabilities-catalog"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-05T20:17:44.790","score":9.8,"severity":"CRITICAL","desc":"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. Prior to 1.11.3, sofia_presence_handle_sip_i_message() split the To user of an inbound SIP MESSAGE on a plus sign…","product":"Freeswitch","seen":1794257662269},"kev":{"added":"2026-11-09","due":"2026-11-12","ransomware":"Unknown","vendor":"SignalWire","product":"FreeSwitch","name":"SignalWire FreeSwitch Code Injection Vulnerability"},"epss":{"epss":0.01299,"pct":0.70632,"at":1794244601529},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}