CVE-2025-27840 (GCVE-0-2025-27840)
Vulnerability from cvelistv5
Published
2025-03-08 00:00
Modified
2025-05-12 15:33
Severity ?
6.8 (Medium) - CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L
CWE
Summary
Espressif ESP32 chips allow 29 hidden HCI commands, such as 0xFC02 (Write memory).
References
cve@mitre.org https://cheriot.org/auditing/backdoor/2025/03/09/no-esp32-style-backdoor.html Third Party Advisory, Technical Description
cve@mitre.org https://darkmentor.com/blog/esp32_non-backdoor/ Exploit, Third Party Advisory, Technical Description
cve@mitre.org https://flyingpenguin.com/?p=67838 Third Party Advisory, Technical Description
cve@mitre.org https://github.com/TarlogicSecurity/Talks/blob/main/2025_RootedCon_BluetoothTools.pdf Third Party Advisory
cve@mitre.org https://github.com/em0gi/CVE-2025-27840 Product
cve@mitre.org https://github.com/esphome/esphome/discussions/8382 Issue Tracking
cve@mitre.org https://github.com/orgs/espruino/discussions/7699 Issue Tracking
cve@mitre.org https://news.ycombinator.com/item?id=43301369 Issue Tracking
cve@mitre.org https://news.ycombinator.com/item?id=43308740 Issue Tracking
cve@mitre.org https://reg.rootedcon.com/cfp/schedule/talk/5 Third Party Advisory
cve@mitre.org https://www.bleepingcomputer.com/news/security/undocumented-backdoor-found-in-bluetooth-chip-used-by-a-billion-devices/ Exploit, Press/Media Coverage
cve@mitre.org https://www.bleepingcomputer.com/news/security/undocumented-commands-found-in-bluetooth-chip-used-by-a-billion-devices/ Exploit, Press/Media Coverage
cve@mitre.org https://www.espressif.com/en/news/Response_ESP32_Bluetooth Press/Media Coverage
cve@mitre.org https://www.tarlogic.com/news/backdoor-esp32-chip-infect-ot-devices/ Third Party Advisory
cve@mitre.org https://x.com/pascal_gujer/status/1898442439704158276 Third Party Advisory
Impacted products
Vendor Product Version
Espressif ESP32 Version: 2025-03-06   <
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