{"id":"CVE-2026-44090","aliases":["EUVD-2026-51025","GHSA-9h9r-3q9w-h7vj"],"status":"published","title":"Missing authentication for MQTT Broker","description":"Due to missing authentication, an unauthenticated remote attacker may access the MQTT broker, which is only protected from external access by a firewall. This may lead to the device being fully compromised.","severity":{"version":"4.0","score":9.3,"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00746,"percentile":0.55096,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2026-07-30T06:47:04Z","modified":"2026-07-30T14:31:21Z","products":[{"vendor":"phoenix contact","product":"charx sec-3000"},{"vendor":"phoenix contact","product":"charx sec-3050"},{"vendor":"phoenix contact","product":"charx sec-3100"},{"vendor":"phoenix contact","product":"charx sec-3150"}],"references":[{"url":"https://www.certvde.com/en/advisories/VDE-2026-008/"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44090"},{"url":"https://www.certvde.com/en/advisories/VDE-2026-008"},{"url":"https://github.com/advisories/GHSA-9h9r-3q9w-h7vj"}],"sources":{"cve":[{"id":"CVE-2026-44090","title":"Missing authentication for MQTT Broker","description":"Due to missing authentication, an unauthenticated remote attacker may access the MQTT broker, which is only protected from external access by a firewall. This may lead to the device being fully compromised.","status":"published","published":"2026-07-30T06:47:04.767Z","modified":"2026-07-30T12:34:08.064Z","cvss":[{"version":"4.0","score":9.3,"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","level":"critical","assessor":"cna"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T13:42:49.132798Z"}],"euvd":[{"id":"EUVD-2026-51025","description":"Due to missing authentication, an unauthenticated remote attacker may access the MQTT broker, which is only protected from external access by a firewall. This may lead to the device being fully compromised.","status":"published","published":"2026-07-30T06:47:04Z","modified":"2026-07-30T12:34:08Z","cvss":[{"version":"4.0","score":9.3,"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","level":"critical"}],"updated_at":"2026-11-02T18:02:29.367786Z"}],"ghsa":[{"id":"GHSA-9h9r-3q9w-h7vj","title":"Due to missing authentication, an unauthenticated remote attacker may access the MQTT broker,...","description":"Due to missing authentication, an unauthenticated remote attacker may access the MQTT broker, which is only protected from external access by a firewall. This may lead to the device being fully compromised.","status":"published","published":"2026-07-30T09:31:17Z","modified":"2026-07-30T09:31:24Z","cvss":[{"version":"4.0","score":9.3,"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/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","level":"critical"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T15:09:56.692541Z"}],"nvd":[{"id":"CVE-2026-44090","description":"Due to missing authentication, an unauthenticated remote attacker may access the MQTT broker, which is only protected from external access by a firewall. This may lead to the device being fully compromised.","status":"published","published":"2026-07-30T07:16:56.81Z","modified":"2026-07-30T14:31:21.447Z","cvss":[{"version":"4.0","score":9.3,"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/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","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:12:33.955581Z"}]}}