{"id":"CVE-2026-77056","aliases":[],"cve":{"records":[{"id":"CVE-2026-77056","source":"CERT-PL","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-08-20T09:37:37.787Z","published":"2026-10-26T14:45:53.279Z","modified":"2026-10-26T16:46:44.867Z"}],"publishers":[{"name":"CERT-PL","role":"CNA","organizationId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","modified":"2026-10-26T14:45:53.279Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-26T16:46:44.867Z"}],"references":[{"url":"https://cert.pl/en/posts/2026/10/CVE-2026-77052","tags":["third-party-advisory"],"source":"CERT-PL"},{"url":"https://boneio.eu/en/docs/black","tags":["product"],"source":"CERT-PL"}],"weaknesses":[{"id":"CWE-1392","description":"CWE-1392 Use of Default Credentials","source":"CERT-PL"}],"applicability":[{"source":"CERT-PL","statements":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:boneio:black_debian_images:*:*:*:*:*:*:*:*","versionStartIncluding":"1.2.0","versionEndExcluding":"1.6.0"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-26T16:25:44.166478Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Use of Default Credentials in boneIO","titleSource":"CERT-PL","descriptionSource":"CERT-PL","description":"boneIO black_debian_images ships with a Mosquitto MQTT broker that uses the same default credentials on all devices. These credentials are publicly documented on github, and there is no indication in the instructions to change them. A remote attacker can use them to gain full read and write access to the broker, allowing control of connected relays, blinds, and gates, and injection of fake entities into a linked Home Assistant installation.\n\nThis issue was fixed in version 1.6.0 of the image: MQTT passwords are generated per device at first boot. Devices upgraded from earlier versions keep their existing broker credentials; from boneio 1.6.0 the web panel reports credentials that are still the published defaults, and the owner has to change them.","score":7.1,"severity":"high","published":"2026-10-26T14:45:53.279Z","modified":"2026-10-26T16:46:44.867Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"boneIO","name":"black_debian_images","platforms":[],"versions":[{"version":"1.2.0","status":"affected","lessThan":"1.6.0","versionType":"semver"}],"defaultStatus":"unaffected","cpes":[],"source":"CERT-PL","url":"https://www.cve.org/CVERecord?id=CVE-2026-77056"}],"remediation":[],"references":["https://cert.pl/en/posts/2026/10/CVE-2026-77052","https://boneio.eu/en/docs/black"],"sources":[{"name":"CVE","id":"CVE-2026-77056","modified":"2026-10-26T16:46:44.867Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-77056"}],"assessments":[{"source":"CERT-PL","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":7.1}],"sourceAffected":[],"observedAt":"2026-10-29T14:44:22.950Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T00:40:33.739Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":{"text":"boneIO black_debian_images versions before 1.6.0 use default Mosquitto MQTT broker credentials, allowing a remote attacker to gain full access. The credentials are publicly documented. Devices upgraded from earlier versions keep their existing credentials.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:22:45.958Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-77056"}]}}