CVE-2026-0778

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{"affected": [{"affectedData": [{"defaultStatus": "unknown", "product": "JuiceBox 40", "vendor": "Enel X", "versions": [{"status": "affected", "version": "4.2.7"}]}], "source": "zdi-disclosures@trendmicro.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Enel X JuiceBox 40 Telnet Service Missing Authentication Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Enel X JuiceBox 40 charging stations. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the telnet service, which listens on TCP port 2000 by default. The issue results from the lack of authentication prior to allowing remote connections. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-23285."}, {"lang": "es", "value": "Vulnerabilidad de ejecuci\u00f3n remota de c\u00f3digo por falta de autenticaci\u00f3n en el servicio Telnet de Enel X JuiceBox 40. Esta vulnerabilidad permite a atacantes adyacentes a la red ejecutar c\u00f3digo arbitrario en instalaciones afectadas de estaciones de carga Enel X JuiceBox 40. La autenticaci\u00f3n no es requerida para explotar esta vulnerabilidad.\n\nLa falla espec\u00edfica existe dentro del servicio Telnet, que escucha en el puerto TCP 2000 por defecto. El problema resulta de la falta de autenticaci\u00f3n antes de permitir conexiones remotas. Un atacante puede aprovechar esta vulnerabilidad para ejecutar c\u00f3digo en el contexto de la cuenta de servicio. Fue ZDI-CAN-23285."}], "id": "CVE-2026-0778", "lastModified": "2026-06-17T10:11:21.957", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-0778", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-01-23T19:15:04.225411Z", "version": "2.0.3"}}]}, "published": "2026-01-23T04:16:05.073", "references": [{"source": "zdi-disclosures@trendmicro.com", "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-041/"}], "sourceIdentifier": "zdi-disclosures@trendmicro.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-18T19:53:11.223235+00:00", "value": {"mitigation_remediation": ["Disable the telnet service entirely on all JuiceBox 40 units if it is not needed for operations.", "If the service must remain, use firewall rules to block TCP port 2000 from all networks except the internal management network.", "Apply any vendor\u2011released firmware or security update that adds authentication to the telnet service or otherwise removes the unauthenticated access path."], "summary": {"action": "Apply Fix", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The affected product is the Enel X JuiceBox 40 charging station. No specific firmware revisions or version ranges are provided, so all units that ship with the default telnet service enabled should be considered vulnerable.", "description_and_impact": "A missing authentication check in the telnet service on Enel X JuiceBox 40 charging stations permits an attacker to run arbitrary code with the privileges of the service account. The telnet service listens on TCP port 2000 by default and does not require any credentials; thus, authentication is not enforced before allowing remote connections. Based on the description, it is inferred that an attacker who can reach the network can connect to this port and execute code, resulting in full compromise of the device\u2019s confidentiality, integrity, and availability.", "risk_and_exploitability": "The CVSS score is 8.8, indicating a severe risk. The EPSS score is reported as less than 1%, which suggests that current exploitation rates are very low, yet the weakness remains present. This vulnerability is not listed in CISA\u2019s KEV catalog. It is inferred that the likely attack vector is any network element that can access the telnet port\u2014such as nearby sensors or management devices on the same local network\u2014because authentication is not required, making the exploit straightforward for an attacker with network access."}}}}, "created": "2026-01-23T10:26:23.862600+00:00", "updated": "2026-04-18T20:00:09.298297+00:00", "vendors": ["enel_x", "enel_x$PRODUCT$juicebox_40"]}