CVE-2026-27764

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This vulnerability may allow unauthorized users to authenticate as other users or enable\u00a0a malicious actor to cause a denial-of-service condition by overwhelming the backend with valid session requests."}, {"lang": "es", "value": "El backend de WebSocket utiliza identificadores de estaciones de carga para asociar sesiones de forma \u00fanica, pero permite que m\u00faltiples puntos finales se conecten utilizando el mismo identificador de sesi\u00f3n. Esta implementaci\u00f3n resulta en identificadores de sesi\u00f3n predecibles y permite el secuestro o la suplantaci\u00f3n de sesi\u00f3n, donde la conexi\u00f3n m\u00e1s reciente desplaza a la estaci\u00f3n de carga leg\u00edtima y recibe comandos del backend destinados a esa estaci\u00f3n. Esta vulnerabilidad puede permitir a usuarios no autorizados autenticarse como otros usuarios o permitir a un actor malicioso causar una condici\u00f3n de denegaci\u00f3n de servicio al sobrecargar el backend con solicitudes de sesi\u00f3n v\u00e1lidas."}], "id": "CVE-2026-27764", "lastModified": "2026-06-17T10:27:39.210", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.4, "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.7, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-27764", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-10T17:47:17.281513Z", "version": "2.0.3"}}]}, "published": "2026-03-06T16:16:11.267", "references": [{"source": "ics-cert@hq.dhs.gov", "tags": ["Product"], "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-062-06.json"}, {"source": "ics-cert@hq.dhs.gov", "tags": ["Product"], "url": "https://mobiliti.hu/emobilitas/ugyfeltamogatas/ugyfelszolgalat"}, {"source": "ics-cert@hq.dhs.gov", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-062-06"}], "sourceIdentifier": "ics-cert@hq.dhs.gov", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-613"}], "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-613"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "e-mobi.hu", "source": "cna", "vendor": "Mobiliti"}, "product": "e-mobi.hu", "vendor": "mobiliti"}], "analysis": {"en": {"generated_at": "2026-04-16T11:22:59.405621+00:00", "value": {"mitigation_remediation": ["Await and apply an official vendor patch or update for Mobiliti e\u2011mobi.hu as soon as it becomes available.", "If no patch exists, implement a temporary workaround by contacting Mobiliti support to obtain guidance on blocking or limiting simultaneous connections that share a session ID.", "Configure the backend or network firewall to enforce unique session identifiers, disallowing multiple connections using the same session ID and requiring authentication per endpoint.", "Deploy monitoring to detect sudden increases in WebSocket connections or anomalous command traffic, which may indicate an ongoing hijacking or denial\u2011of\u2011service attempt."], "summary": {"action": "Apply Workaround", "impact": "Session Hijacking and Denial of Service"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the Mobiliti e\u2011mobi.hu WebSocket backend, which provides management for electric vehicle charging stations. No specific version information is available in the CVE report, so any deployment of this product may be impacted until a vendor fix is released.", "description_and_impact": "The WebSocket backend for Mobiliti e\u2011mobi.hu creates session identifiers based on charging station identifiers, but does not enforce uniqueness. As a result, multiple devices can connect with the same session ID, producing predictable identifiers that an attacker can exploit. The most recent connection displaces the legitimate station and receives any backend commands queued for that station. This allows an unauthorized user to impersonate another charging station or to send malicious commands. If the attacker repeatedly opens sessions, the backend can be saturated, producing a denial\u2011of\u2011service condition for legitimate users.", "risk_and_exploitability": "With a CVSS score of 6.9, the issue is rated medium severity. The EPSS score is below 1\u202f%, indicating a very low but non\u2011zero probability of exploitation at the time of analysis, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. The likely attack vector is a remote attacker who can access the WebSocket endpoint; by sending a legitimate session request with a predictable session ID, the attacker can hijack the session and issue commands or overload the backend with requests."}}}}, "created": "2026-03-09T10:07:28.531830+00:00", "updated": "2026-04-16T11:30:15.904223+00:00", "vendors": ["mobiliti", "mobiliti$PRODUCT$e-mobi.hu"]}