{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-42806 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-42806 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-42806 is a medium-severity vulnerability in Bosch Sensortec BME690 SensorAPI (C), published on 10 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-42806 and fix it if it is affected.\n\nWhat it is: CVE-2026-42806 is a medium-severity vulnerability in Bosch Sensortec BME690 SensorAPI (C), published on 10 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-42806 in the wild and no public exploit code.\n\nAffected product: Bosch Sensortec BME690 SensorAPI (C). No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-42806/ (Markdown: https://insights.sbomify.com/CVE-2026-42806/index.md)","id":"CVE-2026-42806","markdown":"https://insights.sbomify.com/CVE-2026-42806/index.md","name":"CVE-2026-42806","record":{"aliases":["GHSA-wf7g-q2xv-vf8v"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["data_read","other"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Bosch BME690 SensorAPI","requires_auth":"none","summary":"A compromised I2C/SPI peripheral can trigger an out-of-bounds read in the Bosch BME690 driver, leaking adjacent stack memory and corrupting sensor measurements.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"bosch","cpe":[],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"An out-of-bounds read vulnerability was discovered in the Bosch BME690 SensorAPI (C-driver) in version v1.0.3 and prior, specifically within the field data parsing logic in read_all_field_data (bme69x.c).\r\n\r\nThe driver prefetches heater configuration registers into a contiguous 30-byte stack buffer (set_val) mapping IDAC, RES_HEAT, and GAS_WAIT tables.\r\n\r\nWhen parsing sensor field data, the gas_index is extracted using a 4-bit mask (0..15) but lacks boundary verification against the valid range (0..9).\r\n\r\nAn attacker or a compromised peripheral mimicking a sensor on the I2C/SPI bus could return a payload with a gas index value of 10 or higher.\r\n\r\nThis causes the driver to perform an out-of-bounds array access (set_val[20 + gas_index]), reading up to 6 bytes past the stack buffer.\r\n\r\nThe leaked out-of-bounds byte is then written into the public gas_wait field, which may lead to measurement corruption or leak adjacent stack memory when telemetered or logged.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Information disclosure in BME690 SensorAPI (C)","id":"CVE-2026-42806","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Memory corruption in COINES SDK","id":"CVE-2026-42807"},"packages":[],"prev":{"headline":"Memory corruption in BHI385 SensorAPI (C Library)","id":"CVE-2026-42805"},"products":["BME690 SensorAPI (C)"],"published":"2026-09-10","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-10","vendors":["Bosch Sensortec"]},"summary":"A compromised I2C/SPI peripheral can trigger an out-of-bounds read in the Bosch BME690 driver, leaking adjacent stack memory and corrupting sensor measurements.","url":"https://insights.sbomify.com/CVE-2026-42806/"}