CVE-2025-27840
Vulnerability from cvelistv5
Published
2025-03-08 00:00
Modified
2025-03-11 17:03
Severity ?
6.8 (Medium) - CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L
Summary
Espressif ESP32 chips allow 29 hidden HCI commands, such as 0xFC02 (Write memory).
References
cve@mitre.orghttps://cheriot.org/auditing/backdoor/2025/03/09/no-esp32-style-backdoor.htmlThird Party Advisory, Technical Description
cve@mitre.orghttps://darkmentor.com/blog/esp32_non-backdoor/Exploit, Third Party Advisory, Technical Description
cve@mitre.orghttps://flyingpenguin.com/?p=67838Third Party Advisory, Technical Description
cve@mitre.orghttps://github.com/TarlogicSecurity/Talks/blob/main/2025_RootedCon_BluetoothTools.pdfThird Party Advisory
cve@mitre.orghttps://github.com/em0gi/CVE-2025-27840Product
cve@mitre.orghttps://github.com/esphome/esphome/discussions/8382Issue Tracking
cve@mitre.orghttps://github.com/orgs/espruino/discussions/7699Issue Tracking
cve@mitre.orghttps://news.ycombinator.com/item?id=43301369Issue Tracking
cve@mitre.orghttps://news.ycombinator.com/item?id=43308740Issue Tracking
cve@mitre.orghttps://reg.rootedcon.com/cfp/schedule/talk/5Third Party Advisory
cve@mitre.orghttps://www.bleepingcomputer.com/news/security/undocumented-backdoor-found-in-bluetooth-chip-used-by-a-billion-devices/Exploit, Press/Media Coverage
cve@mitre.orghttps://www.bleepingcomputer.com/news/security/undocumented-commands-found-in-bluetooth-chip-used-by-a-billion-devices/Exploit, Press/Media Coverage
cve@mitre.orghttps://www.espressif.com/en/news/Response_ESP32_BluetoothPress/Media Coverage
cve@mitre.orghttps://www.tarlogic.com/news/backdoor-esp32-chip-infect-ot-devices/Third Party Advisory
cve@mitre.orghttps://x.com/pascal_gujer/status/1898442439704158276Third Party Advisory
Impacted products
Vendor Product Version
Espressif ESP32 Version: 2025-03-06   <
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    "dateReserved": "2025-03-08T00:00:00.000Z",
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  }
}


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