{"answers":{"affected":"It affects 5 products.","exploited":"There is no known exploitation of CVE-2021-31786 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-31786 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-31786 is a medium-severity denial of service vulnerability in n/a, published on 7 Sep 2021. 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-2021-31786 and fix it if it is affected.\n\nWhat it is: CVE-2021-31786 is a medium-severity denial of service vulnerability in n/a, published on 7 Sep 2021. 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-2021-31786 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2021-31786/ (Markdown: https://insights.sbomify.com/CVE-2021-31786/index.md)","id":"CVE-2021-31786","markdown":"https://insights.sbomify.com/CVE-2021-31786/index.md","name":"CVE-2021-31786","record":{"aliases":["GHSA-g4j2-r5x5-83p7"],"analysis":{"component_type":"iot_embedded","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Bluetooth audio chip","requires_auth":"none","summary":"Attackers can cause device deadlock and disconnection by forging a Bluetooth address matching the current host, affecting Actions ATS2815/2819 audio devices.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"ats2815_firmware","vendor":"actions-semi"},{"product":"ats2819_firmware","vendor":"actions-semi"},{"product":"ats2819p_firmware","vendor":"actions-semi"},{"product":"ats2819s_firmware","vendor":"actions-semi"},{"product":"ats2819t_firmware","vendor":"actions-semi"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-667","name":"Improper Locking"}],"description":"The Bluetooth Classic Audio implementation on Actions ATS2815 and ATS2819 devices does not properly handle a connection attempt from a host with the same BDAddress as the current connected BT host, allowing attackers to trigger a disconnection and deadlock of the device by connecting with a forged BDAddress that matches the original connected host.","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":"Denial of service in n/a","id":"CVE-2021-31786","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"Denial of service in n/a","id":"CVE-2021-31787"},"packages":[],"prev":{"headline":"Denial of service in n/a","id":"CVE-2021-31785"},"products":["n/a"],"published":"2021-09-07","related":[{"cvss_score":6.5,"headline":"Denial of service in n/a","id":"CVE-2021-31787","kev_date_added":null,"published":"2021-11-30"},{"cvss_score":6.5,"headline":"Denial of service in n/a","id":"CVE-2021-31785","kev_date_added":null,"published":"2021-09-07"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can cause device deadlock and disconnection by forging a Bluetooth address matching the current host, affecting Actions ATS2815/2819 audio devices.","url":"https://insights.sbomify.com/CVE-2021-31786/"}