{"id":"CVE-2026-42807","title":"A heap-based buffer overflow vulnerability in the PC bridge protocol decoder of BoschSensortec COINES_SDK (versions 2.10 through 2.12.2) allows attackers to cause a denial of service (process crash) or potentially execute arbitrary code.…","summary":"A heap-based buffer overflow vulnerability in the PC bridge protocol decoder of BoschSensortec COINES_SDK (versions 2.10 through 2.12.2) allows attackers to cause a denial of service (process crash) or potentially execute arbitrary code.…","severity":"high","cvss":8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-122"],"vendor":"Bosch Sensortec","product":"COINES_SDK","affected":["COINES_SDK >= 2.10 <= 2.12.2"],"published":"2026-09-10","updated":"2026-09-10","sourceUpdated":"2026-09-10T16:17:12.377","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-42807","references":[{"url":"https://psirt.bosch.com/security-advisories/BOSCH-SA-223618.html","label":"psirt@bosch.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-10T14:59:49.196198Z"},"ingestedAt":"2026-09-10T09:45:12.029Z","epss":0.00204,"epssPercentile":0.10644,"slug":"CVE-2026-42807","body":"## Overview\n\nA heap-based buffer overflow vulnerability in the PC bridge protocol decoder of BoschSensortec COINES_SDK (versions 2.10 through 2.12.2) allows attackers to cause a denial of service (process crash) or potentially execute arbitrary code. \r\n\r\nThe bridge decoder ({{bridge_decoder.c}}) trusts the packet length field provided by the external device and forwards it to the host response queue ({{mqueue_add_data}}) without validating the bounds of the destination buffer. \r\n\r\nA malicious or compromised USB or Bluetooth Low Energy (BLE) peripheral can advertise a payload size up to ~3 KB, which exceeds the default queue slot size of 255 bytes. \r\n\r\nThis results in an unbounded heap overwrite ({{memcpy}}), corrupting adjacent heap metadata on the host system when processing the device's response.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":44,"depthScoreParts":{"impact":44,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}