{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2025-27840", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2025-03-11T17:03:29.921Z", "dateReserved": "2025-03-08T00:00:00.000Z", "datePublished": "2025-03-08T00:00:00.000Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unknown", "product": "ESP32", "vendor": "Espressif", "versions": [{"status": "affected", "version": "2025-03-06", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Espressif ESP32 chips allow 29 hidden HCI commands, such as 0xFC02 (Write memory)."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-912", "description": "CWE-912 Hidden Functionality", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2025-03-11T17:03:29.921Z"}, "references": [{"url": "https://github.com/TarlogicSecurity/Talks/blob/main/2025_RootedCon_BluetoothTools.pdf"}, {"url": "https://x.com/pascal_gujer/status/1898442439704158276"}, {"url": "https://www.tarlogic.com/news/backdoor-esp32-chip-infect-ot-devices/"}, {"url": "https://www.bleepingcomputer.com/news/security/undocumented-backdoor-found-in-bluetooth-chip-used-by-a-billion-devices/"}, {"url": "https://reg.rootedcon.com/cfp/schedule/talk/5"}, {"url": "https://flyingpenguin.com/?p=67838"}, {"url": "https://github.com/em0gi/CVE-2025-27840"}, {"url": "https://github.com/orgs/espruino/discussions/7699"}, {"url": "https://www.bleepingcomputer.com/news/security/undocumented-commands-found-in-bluetooth-chip-used-by-a-billion-devices/"}, {"url": "https://darkmentor.com/blog/esp32_non-backdoor/"}, {"url": "https://news.ycombinator.com/item?id=43308740"}, {"url": "https://news.ycombinator.com/item?id=43301369"}, {"url": "https://github.com/esphome/esphome/discussions/8382"}, {"url": "https://cheriot.org/auditing/backdoor/2025/03/09/no-esp32-style-backdoor.html"}, {"url": "https://www.espressif.com/en/news/Response_ESP32_Bluetooth"}], "x_generator": {"engine": "enrichogram 0.0.1"}, "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 6.8, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L"}}]}}, "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:espressif:esp32_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "C81AEA93-C163-4E5C-A25D-D2903742C9EE", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:espressif:esp32:-:*:*:*:*:*:*:*", "matchCriteriaId": "D1024B06-380B-4116-B7F9-A21A03534B0C", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Espressif ESP32 chips allow 29 hidden HCI commands, such as 0xFC02 (Write memory)."}, {"lang": "es", "value": "Los chips Espressif ESP32 permiten 29 comandos HCI ocultos, como 0xFC02 (Escribir memoria)."}], "id": "CVE-2025-27840", "lastModified": "2025-03-12T14:58:54.130", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "PHYSICAL", "availabilityImpact": "LOW", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 0.3, "impactScore": 6.0, "source": "cve@mitre.org", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "PHYSICAL", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 0.5, "impactScore": 5.8, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-03-08T20:15:36.027", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory", "Technical Description"], "url": "https://cheriot.org/auditing/backdoor/2025/03/09/no-esp32-style-backdoor.html"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory", "Technical Description"], "url": "https://darkmentor.com/blog/esp32_non-backdoor/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "Technical Description"], "url": "https://flyingpenguin.com/?p=67838"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://github.com/TarlogicSecurity/Talks/blob/main/2025_RootedCon_BluetoothTools.pdf"}, {"source": "cve@mitre.org", "tags": ["Product"], "url": "https://github.com/em0gi/CVE-2025-27840"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking"], "url": "https://github.com/esphome/esphome/discussions/8382"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking"], "url": "https://github.com/orgs/espruino/discussions/7699"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking"], "url": "https://news.ycombinator.com/item?id=43301369"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking"], "url": "https://news.ycombinator.com/item?id=43308740"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://reg.rootedcon.com/cfp/schedule/talk/5"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Press/Media Coverage"], "url": "https://www.bleepingcomputer.com/news/security/undocumented-backdoor-found-in-bluetooth-chip-used-by-a-billion-devices/"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Press/Media Coverage"], "url": "https://www.bleepingcomputer.com/news/security/undocumented-commands-found-in-bluetooth-chip-used-by-a-billion-devices/"}, {"source": "cve@mitre.org", "tags": ["Press/Media Coverage"], "url": "https://www.espressif.com/en/news/Response_ESP32_Bluetooth"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.tarlogic.com/news/backdoor-esp32-chip-infect-ot-devices/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://x.com/pascal_gujer/status/1898442439704158276"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-912"}], "source": "cve@mitre.org", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}