{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42804","assignerOrgId":"c95f66b2-7e7c-41c5-8f09-6f86ec68659c","state":"PUBLISHED","assignerShortName":"bosch","dateReserved":"2026-04-30T08:03:11.875Z","datePublished":"2026-09-10T08:56:14.315Z","dateUpdated":"2026-09-10T15:01:55.301Z"},"containers":{"cna":{"providerMetadata":{"orgId":"c95f66b2-7e7c-41c5-8f09-6f86ec68659c","shortName":"bosch","dateUpdated":"2026-09-10T08:56:14.315Z"},"descriptions":[{"lang":"en","value":"A stack-based buffer overflow vulnerability exists in the Bosch Sensortec BHI360 SensorAPI(C-Library) in versions up to and including commit d6b200416a.\r\n\r\nThe vulnerability is located within the FIFO parsing and debug logging subsystem inside the function bhi360_parse_debug_message() in bhi360_parse.c (lines 1852-1875). \r\n\r\nThe parser trusts the first payload byte of a debug frame as the message length (msg_length) and copies that many bytes into a fixed-size 17-byte stack buffer (debug_msg) via memcpy without performing any bounds checking.\r\n\r\nA locally or physically positioned attacker (e.g., via a malicious sensor, counterfeit hardware module, or a Man-in-the-Middle on the communication bus) can exploit this vulnerability by injecting a crafted debug frame with a length byte exceeding 16.\r\n\r\nThis corrupts adjacent stack data, including the saved return address.\r\n\r\nFurthermore, because the overflowed buffer is subsequently passed to a printf-style logging sink, the attacker can supply format string specifiers (e.g., %n) to execute arbitrary code on the host microcontroller/SoC or cause a reliable system crash (Denial of Service)."}],"affected":[{"vendor":"Bosch Sensortec","product":"BHI360_SensorAPI (C-Library)","versions":[{"version":"2.1.0","status":"affected","versionType":"custom","lessThanOrEqual":"2.2.0"}]}],"problemTypes":[{"descriptions":[{"lang":"en-US","description":"CWE-121 Stack-based Buffer Overflow","cweId":"CWE-121"}]}],"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:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","attackVector":"PHYSICAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.6,"baseSeverity":"HIGH"}}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-10T15:01:43.170911Z","id":"CVE-2026-42804","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-10T15:01:55.301Z"}}]}}