{"apiVersion":"1.0","identifier":"CVE-2026-73665","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.","publishedAt":"2026-08-13T22:17:28","lastModifiedAt":"2026-08-18T02:17:29","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73665","cvssScore":9.3,"cvssVector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","epssProbability":0.00295,"riskScore":0.95,"affectedProduct":"FreePBX","affectedVersions":"<17.0.9","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-73665","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-73665","en":"https://www.redsauce.net/en/cves/CVE-2026-73665","fr":"https://www.redsauce.net/fr/cves/CVE-2026-73665","pt":"https://www.redsauce.net/pt/cves/CVE-2026-73665","de":"https://www.redsauce.net/de/cves/CVE-2026-73665","sk":"https://www.redsauce.net/sk/cves/CVE-2026-73665","el":"https://www.redsauce.net/el/cves/CVE-2026-73665"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-73665"}}