CVE-2026-5768

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-5768", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "state": "PUBLISHED", "assignerShortName": "icscert", "dateReserved": "2026-04-07T20:28:13.672Z", "datePublished": "2026-05-29T16:58:02.035Z", "dateUpdated": "2026-05-29T19:31:52.111Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2026-05-29T16:58:02.035Z"}, "title": "Fourth Frontier Frontier X Mobile Application, Frontier X2 Missing Authentication for Critical Function", "datePublic": "2026-05-28T16:46:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-306", "description": "CWE-306", "type": "CWE"}]}], "affected": [{"vendor": "Fourth Frontier", "product": "Frontier X Android application", "versions": [{"status": "affected", "version": "0", "lessThan": "15.0.0", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Fourth Frontier", "product": "Frontier X IOS application", "versions": [{"status": "affected", "version": "0", "lessThan": "25.0.0", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Fourth Frontier", "product": "Frontier X2", "versions": [{"status": "affected", "version": "All versions"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Frontier X2 device allows unauthenticated BLE read/write access to critical GATT characteristics without enforcing pairing authentication or authorization. This allows attackers within BLE range to perform unauthorized control of device functions, including starting/stopping activities, triggering vibrations, causing denial-of-service conditions, and fuzzing characteristic values to induce unexpected behavior. Additionally, the Frontier X mobile application lacks proper BLE device authentication, allowing attackers to impersonate a legitimate Frontier X2 device and connect to the application. By cloning BLE advertisements and exposing expected GATT characteristics, attackers can manipulate activity states and inject fabricated health telemetry such as breathing rate, heart rate, strain, and other health-related data into the mobile application.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<span>The Frontier X2 device allows unauthenticated BLE read/write access to critical GATT characteristics without enforcing pairing authentication or authorization. This allows attackers within BLE range to perform unauthorized control of device functions, including starting/stopping activities, triggering vibrations, causing denial-of-service conditions, and fuzzing characteristic values to induce unexpected behavior. Additionally, the Frontier X mobile application lacks proper BLE device authentication, allowing attackers to impersonate a legitimate Frontier X2 device and connect to the application. By cloning BLE advertisements and exposing expected GATT characteristics, attackers can manipulate activity states and inject fabricated health telemetry such as breathing rate, heart rate, strain, and other health-related data into the mobile application.</span>"}]}], "references": [{"url": "https://fourthfrontier.com/pages/contact-us"}, {"url": "https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-148-01"}, {"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-148-01.json"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}}], "workarounds": [{"lang": "en", "value": "Fourth Frontier is aware of the vulnerability and is working on a fix. Users are encouraged to reach out to Fourth Frontier directly for assistance:\u00a0\n https://fourthfrontier.com/pages/contact-us \n\n\n\nFrontier X/X2 devices can connect to only one app at a time; users should first connect the Frontier X/X2 device using the Frontier X app and then start the activity.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Fourth Frontier is aware of the vulnerability and is working on a fix. Users are encouraged to reach out to Fourth Frontier directly for assistance:&nbsp;<br><a href=\"https://fourthfrontier.com/pages/contact-us\">https://fourthfrontier.com/pages/contact-us</a></p><p>Frontier X/X2 devices can connect to only one app at a time; users should first connect the Frontier X/X2 device using the Frontier X app and then start the activity.</p>"}]}], "credits": [{"lang": "en", "value": "Shakir Zari and Jerin Sunny reported this vulnerability to CISA.", "type": "finder"}], "source": {"advisory": "ICSMA-26-148-01", "discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-29T19:25:07.692084Z", "id": "CVE-2026-5768", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-29T19:31:52.111Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-5768", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-05-29T19:25:07.692084Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-29T19:31:47.018Z"}}], "cna": {"title": "Fourth Frontier Frontier X Mobile Application, Frontier X2 Missing Authentication for Critical Function", "source": {"advisory": "ICSMA-26-148-01", "discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Shakir Zari and Jerin Sunny reported this vulnerability to CISA."}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Fourth Frontier", "product": "Frontier X Android application", "versions": [{"status": "affected", "version": "0", "lessThan": "15.0.0", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Fourth Frontier", "product": "Frontier X IOS application", "versions": [{"status": "affected", "version": "0", "lessThan": "25.0.0", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Fourth Frontier", "product": "Frontier X2", "versions": [{"status": "affected", "version": "All versions"}], "defaultStatus": "unaffected"}], "datePublic": "2026-05-28T16:46:00.000Z", "references": [{"url": "https://fourthfrontier.com/pages/contact-us"}, {"url": "https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-148-01"}, {"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-148-01.json"}], "workarounds": [{"lang": "en", "value": "Fourth Frontier is aware of the vulnerability and is working on a fix. Users are encouraged to reach out to Fourth Frontier directly for assistance:\u00a0\n https://fourthfrontier.com/pages/contact-us \n\n\n\nFrontier X/X2 devices can connect to only one app at a time; users should first connect the Frontier X/X2 device using the Frontier X app and then start the activity.", "supportingMedia": [{"type": "text/html", "value": "<p>Fourth Frontier is aware of the vulnerability and is working on a fix. Users are encouraged to reach out to Fourth Frontier directly for assistance:&nbsp;<br><a href=\"https://fourthfrontier.com/pages/contact-us\">https://fourthfrontier.com/pages/contact-us</a></p><p>Frontier X/X2 devices can connect to only one app at a time; users should first connect the Frontier X/X2 device using the Frontier X app and then start the activity.</p>", "base64": false}]}], "x_generator": {"engine": "Vulnogram 1.0.2"}, "descriptions": [{"lang": "en", "value": "The Frontier X2 device allows unauthenticated BLE read/write access to critical GATT characteristics without enforcing pairing authentication or authorization. This allows attackers within BLE range to perform unauthorized control of device functions, including starting/stopping activities, triggering vibrations, causing denial-of-service conditions, and fuzzing characteristic values to induce unexpected behavior. Additionally, the Frontier X mobile application lacks proper BLE device authentication, allowing attackers to impersonate a legitimate Frontier X2 device and connect to the application. By cloning BLE advertisements and exposing expected GATT characteristics, attackers can manipulate activity states and inject fabricated health telemetry such as breathing rate, heart rate, strain, and other health-related data into the mobile application.", "supportingMedia": [{"type": "text/html", "value": "<span>The Frontier X2 device allows unauthenticated BLE read/write access to critical GATT characteristics without enforcing pairing authentication or authorization. This allows attackers within BLE range to perform unauthorized control of device functions, including starting/stopping activities, triggering vibrations, causing denial-of-service conditions, and fuzzing characteristic values to induce unexpected behavior. Additionally, the Frontier X mobile application lacks proper BLE device authentication, allowing attackers to impersonate a legitimate Frontier X2 device and connect to the application. By cloning BLE advertisements and exposing expected GATT characteristics, attackers can manipulate activity states and inject fabricated health telemetry such as breathing rate, heart rate, strain, and other health-related data into the mobile application.</span>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-306", "description": "CWE-306"}]}], "providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2026-05-29T16:58:02.035Z"}}}, "cveMetadata": {"cveId": "CVE-2026-5768", "state": "PUBLISHED", "dateUpdated": "2026-05-29T19:31:52.111Z", "dateReserved": "2026-04-07T20:28:13.672Z", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "datePublished": "2026-05-29T16:58:02.035Z", "assignerShortName": "icscert"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Frontier X Android application", "vendor": "Fourth Frontier", "versions": [{"lessThan": "15.0.0", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "Frontier X IOS application", "vendor": "Fourth Frontier", "versions": [{"lessThan": "25.0.0", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "Frontier X2", "vendor": "Fourth Frontier", "versions": [{"status": "affected", "version": "All versions"}]}], "source": "ics-cert@hq.dhs.gov"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Frontier X2 device allows unauthenticated BLE read/write access to critical GATT characteristics without enforcing pairing authentication or authorization. This allows attackers within BLE range to perform unauthorized control of device functions, including starting/stopping activities, triggering vibrations, causing denial-of-service conditions, and fuzzing characteristic values to induce unexpected behavior. Additionally, the Frontier X mobile application lacks proper BLE device authentication, allowing attackers to impersonate a legitimate Frontier X2 device and connect to the application. By cloning BLE advertisements and exposing expected GATT characteristics, attackers can manipulate activity states and inject fabricated health telemetry such as breathing rate, heart rate, strain, and other health-related data into the mobile application."}, {"lang": "es", "value": "El dispositivo Frontier X2 permite acceso de lectura/escritura BLE no autenticado a caracter\u00edsticas GATT cr\u00edticas sin aplicar autenticaci\u00f3n o autorizaci\u00f3n de emparejamiento. Esto permite a los atacantes dentro del alcance BLE realizar un control no autorizado de las funciones del dispositivo, incluyendo iniciar/detener actividades, activar vibraciones, causar condiciones de denegaci\u00f3n de servicio y 'fuzzing' de valores de caracter\u00edsticas para inducir un comportamiento inesperado. Adem\u00e1s, la aplicaci\u00f3n m\u00f3vil Frontier X carece de una autenticaci\u00f3n adecuada del dispositivo BLE, permitiendo a los atacantes suplantar un dispositivo Frontier X2 leg\u00edtimo y conectarse a la aplicaci\u00f3n. Al clonar anuncios BLE y exponer caracter\u00edsticas GATT esperadas, los atacantes pueden manipular estados de actividad e inyectar telemetr\u00eda de salud fabricada como frecuencia respiratoria, frecuencia card\u00edaca, esfuerzo y otros datos relacionados con la salud en la aplicaci\u00f3n m\u00f3vil."}], "id": "CVE-2026-5768", "lastModified": "2026-07-22T06:10:00.170", "metrics": {"cvssMetricV31": [{"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:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-5768", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-05-29T19:25:07.692084Z", "version": "2.0.3"}}]}, "published": "2026-05-29T18:17:12.997", "references": [{"source": "ics-cert@hq.dhs.gov", "url": "https://fourthfrontier.com/pages/contact-us"}, {"source": "ics-cert@hq.dhs.gov", "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-148-01.json"}, {"source": "ics-cert@hq.dhs.gov", "url": "https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-148-01"}], "sourceIdentifier": "ics-cert@hq.dhs.gov", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "ics-cert@hq.dhs.gov", "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": "Frontier X2", "source": "cna", "vendor": "Fourth Frontier"}, "product": "frontier_x2", "vendor": "fourth_frontier"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,15.0.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Frontier X Android application", "source": "cna", "vendor": "Fourth Frontier"}, "product": "frontier_x_android_application", "vendor": "fourth_frontier"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,25.0.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Frontier X IOS application", "source": "cna", "vendor": "Fourth Frontier"}, "product": "frontier_x_ios_application", "vendor": "fourth_frontier"}], "created": "2026-05-29T18:30:05.346997+00:00", "updated": "2026-05-30T21:18:21.906001+00:00", "vendors": ["fourth_frontier", "fourth_frontier$PRODUCT$frontier_x2", "fourth_frontier$PRODUCT$frontier_x_android_application", "fourth_frontier$PRODUCT$frontier_x_ios_application"]}