{"id":"CVE-2026-42807","state":"PUBLISHED","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 servi","description":"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. \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.","publishedAt":"2026-09-10T09:05:10.550Z","updatedAt":"2026-09-10T15:00:04.892Z","severity":{"score":8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"bosch"},"assigner":"bosch","products":["Bosch Sensortec COINES_SDK"],"affected":[{"vendor":"Bosch Sensortec","product":"COINES_SDK","versions":[{"version":"2.10","status":"affected","lessThanOrEqual":"2.12.2","versionType":"custom"}]}],"references":["https://psirt.bosch.com/security-advisories/BOSCH-SA-223618.html"],"weaknesses":["CWE-122"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/42xxx/CVE-2026-42807.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42807","state":"PUBLISHED","datePublished":"2026-09-10T09:05:10.550Z","dateUpdated":"2026-09-10T15:00:04.892Z","assignerShortName":"bosch","assignerOrgId":"c95f66b2-7e7c-41c5-8f09-6f86ec68659c","dateReserved":"2026-04-30T08:03:11.875Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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. \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."}],"affected":[{"vendor":"Bosch Sensortec","product":"COINES_SDK","versions":[{"version":"2.10","status":"affected","lessThanOrEqual":"2.12.2","versionType":"custom"}]}],"references":[{"url":"https://psirt.bosch.com/security-advisories/BOSCH-SA-223618.html","name":"https://psirt.bosch.com/security-advisories/BOSCH-SA-223618.html","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":8,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-122","lang":"en-US","description":"CWE-122 Heap-based Buffer Overflow"}]}],"providerMetadata":{"shortName":"bosch","orgId":"c95f66b2-7e7c-41c5-8f09-6f86ec68659c","dateUpdated":"2026-09-10T09:05:10.550Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-10T14:59:49.196198Z","id":"CVE-2026-42807","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-10T15:00:04.892Z"}}]}}}