{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-33659 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-33659 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-33659 is a high-severity memory corruption vulnerability in n/a, published on 6 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-33659 and fix it if it is affected.\n\nWhat it is: CVE-2023-33659 is a high-severity memory corruption vulnerability in n/a, published on 6 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-33659 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-2023-33659/ (Markdown: https://insights.sbomify.com/CVE-2023-33659/index.md)","id":"CVE-2023-33659","markdown":"https://insights.sbomify.com/CVE-2023-33659/index.md","name":"CVE-2023-33659","record":{"aliases":["GHSA-mjw2-5qc5-7h27"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"MQTT broker","requires_auth":"none","summary":"A heap buffer overflow in NanoMQ allows attackers to cause a denial of service via crafted MQTT packets.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"nanomq","vendor":"emqx"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. The vulnerability can be triggered by calling the function nmq_subinfo_decode() in the file mqtt_parser.c. An attacker could exploit this vulnerability to cause a denial of service attack.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Memory corruption in n/a","id":"CVE-2023-33659","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"Memory corruption in n/a","id":"CVE-2023-33660"},"packages":[],"prev":{"headline":"Memory corruption in n/a","id":"CVE-2023-33658"},"products":["n/a"],"published":"2023-06-06","related":[{"cvss_score":8.8,"headline":"Missing authorization in n/a","id":"CVE-2024-42655","kev_date_added":null,"published":"2025-07-29"},{"cvss_score":8.5,"headline":"NanoMQ has Buffer Overflow","id":"CVE-2025-59947","kev_date_added":null,"published":"2025-12-15"},{"cvss_score":8,"headline":"Memory corruption in n/a","id":"CVE-2023-34488","kev_date_added":null,"published":"2023-06-12"},{"cvss_score":7.7,"headline":"NanoMQ has Heap Buffer Overflow in URI Parameter Parsing","id":"CVE-2026-32135","kev_date_added":null,"published":"2026-04-20"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2026-36590","kev_date_added":null,"published":"2026-07-15"},{"cvss_score":7.5,"headline":"MQTT v5 Variable Byte Integer parsing out-of-bounds: get_var_integer()","id":"CVE-2026-21888","kev_date_added":null,"published":"2026-03-11"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2024-48077","kev_date_added":null,"published":"2026-01-15"}],"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-01-08","vendors":["n/a"]},"summary":"A heap buffer overflow in NanoMQ allows attackers to cause a denial of service via crafted MQTT packets.","url":"https://insights.sbomify.com/CVE-2023-33659/"}