{"cve":{"cve_id":"CVE-2026-73665","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00331,"epss_percentile":0.24595,"epss_as_of":"2026-10-15","description":"FreePBX is an open source IP PBX. Prior to 17.0.9, the UCP Node server on ports 8001 and 8003 uses io.use(checkAuth) in node/lib/server.js, but Socket.IO version 4 applies that middleware only to the default namespace. An unauthenticated client can connect to custom namespaces that do not consistently invoke checkAuth in node/lib/auth.js and send crafted event values containing carriage-return or newline characters through the Asterisk Manager Interface action path patched by node/lib/asterisk-manager-patch.js, allowing arbitrary commands to execute as the asterisk service user. This issue is fixed in version 17.0.9.","published_at":"2026-08-13T21:32:02.059000Z","last_modified_at":"2026-10-09T19:29:45.570000Z","cvss_v3_score":9.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"CRITICAL","cvss_v4_score":9.3,"cvss_v4_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","cvss_v4_severity":"CRITICAL","ssvc_decision":null,"ssvc_exploitation":"none","ssvc_automatable":true,"ssvc_technical_impact":"total","cwes":["CWE-862"],"nvd_references":["https://github.com/FreePBX/security-reporting/security/advisories/GHSA-37j8-fhxx-9vhp"],"vuln_status":"Analyzed","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-08-13T23:20:52.866618Z","updated_at":"2026-10-11T21:36:59.216424Z"},"effective_severity":"CRITICAL","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":"4.0","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"AT","name":"Attack Requirements","value":"N","value_label":"None"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"VC","name":"Confidentiality (Vulnerable System)","value":"H","value_label":"High"},{"metric":"VI","name":"Integrity (Vulnerable System)","value":"H","value_label":"High"},{"metric":"VA","name":"Availability (Vulnerable System)","value":"H","value_label":"High"},{"metric":"SC","name":"Confidentiality (Subsequent System)","value":"N","value_label":"None"},{"metric":"SI","name":"Integrity (Subsequent System)","value":"N","value_label":"None"},{"metric":"SA","name":"Availability (Subsequent System)","value":"N","value_label":"None"}]},"affected":[{"vendor_slug":"freepbx","vendor_name":"FreePBX","product_slug":"ucp","product_name":"ucp","version_start":"< 17.0.9","version_start_inclusive":true,"version_end":"< 17.0.9","version_end_inclusive":true,"cpe23_uri":"cve5:freepbx:ucp:< 17.0.9:< 17.0.9"},{"vendor_slug":"sangoma","vendor_name":"Sangoma","product_slug":"freepbx","product_name":"FreePBX","version_start":null,"version_start_inclusive":null,"version_end":"17.0.9","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:sangoma:freepbx:*:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/FreePBX/security-reporting/security/advisories/GHSA-37j8-fhxx-9vhp","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-08-13T21:32:02.059000Z","label":"CVE published","source":null},{"type":"ssvc_changed","at":"2026-08-18T02:40:44.495625Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-08-18T02:40:44.495625Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-08-18T02:40:44.495625Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-10-11T21:36:59.216424Z","label":"CVSS score revised","source":"nvd"},{"type":"cvss_changed","at":"2026-10-11T21:36:59.216424Z","label":"CVSS score revised","source":"nvd"},{"type":"cvss_changed","at":"2026-10-11T21:36:59.216424Z","label":"CVSS score revised","source":"nvd"}]}