{"answers":{"affected":"It affects 10 products.","exploited":"There is no known exploitation of CVE-2016-9366 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2016-9366 yet. Limit exposure of the affected software until one is available.","what":"CVE-2016-9366 is a critical authentication bypass vulnerability in Moxa NPort, published on 13 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2016-9366 and fix it if it is affected.\n\nWhat it is: CVE-2016-9366 is a critical authentication bypass vulnerability in Moxa NPort, published on 13 Feb 2017. 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-2016-9366 in the wild and no public exploit code.\n\nAffected product: Moxa NPort. 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-2016-9366/ (Markdown: https://insights.sbomify.com/CVE-2016-9366/index.md)","id":"CVE-2016-9366","markdown":"https://insights.sbomify.com/CVE-2016-9366/index.md","name":"CVE-2016-9366","record":{"aliases":["GHSA-r4qc-5j5j-254j"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Moxa NPort serial server","requires_auth":"none","summary":"Attackers can bypass authentication on Moxa NPort devices by brute-forcing parameters, allowing unauthorized access to the device.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"nport_5100_series_firmware","vendor":"moxa"},{"product":"nport_5100a_series_firmware","vendor":"moxa"},{"product":"nport_5200_series_firmware","vendor":"moxa"},{"product":"nport_5200a_series_firmware","vendor":"moxa"},{"product":"nport_5400_series_firmware","vendor":"moxa"},{"product":"nport_5600-8-dtl_series_firmware","vendor":"moxa"},{"product":"nport_5600_series_firmware","vendor":"moxa"},{"product":"nport_5x50a1-m12_series_firmware","vendor":"moxa"},{"product":"nport_6100_series_firmware","vendor":"moxa"},{"product":"nport_p5150a_series_firmware","vendor":"moxa"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-264","name":null},{"id":"CWE-307","name":"Improper Restriction of Excessive Authentication Attempts"}],"description":"An issue was discovered in Moxa NPort 5110 versions prior to 2.6, NPort 5130/5150 Series versions prior to 3.6, NPort 5200 Series versions prior to 2.8, NPort 5400 Series versions prior to 3.11, NPort 5600 Series versions prior to 3.7, NPort 5100A Series \u0026 NPort P5150A versions prior to 1.3, NPort 5200A Series versions prior to 1.3, NPort 5150AI-M12 Series versions prior to 1.2, NPort 5250AI-M12 Series versions prior to 1.2, NPort 5450AI-M12 Series versions prior to 1.2, NPort 5600-8-DT Series versions prior to 2.4, NPort 5600-8-DTL Series versions prior to 2.4, NPort 6x50 Series versions prior to 1.13.11, NPort IA5450A versions prior to v1.4.  An attacker can freely use brute force to determine parameters needed to bypass authentication.","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":"Auth bypass in Moxa NPort","id":"CVE-2016-9366","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2016"},"n_packages":0,"n_references":2,"next":{"headline":"Denial of service in Moxa NPort","id":"CVE-2016-9367"},"packages":[],"prev":{"headline":"Cross-site request forgery in Moxa NPort","id":"CVE-2016-9365"},"products":["Moxa NPort"],"published":"2017-02-13","related":[{"cvss_score":9.8,"headline":"Auth bypass in Moxa NPort","id":"CVE-2016-9361","kev_date_added":null,"published":"2017-02-13"},{"cvss_score":9.8,"headline":"Auth bypass in Moxa NPort","id":"CVE-2016-9369","kev_date_added":null,"published":"2017-02-13"},{"cvss_score":8.8,"headline":"Cross-site request forgery in Moxa NPort","id":"CVE-2016-9365","kev_date_added":null,"published":"2017-02-13"},{"cvss_score":7.5,"headline":"Denial of service in Moxa NPort","id":"CVE-2016-9367","kev_date_added":null,"published":"2017-02-13"},{"cvss_score":7.3,"headline":"Memory corruption in Moxa NPort","id":"CVE-2016-9363","kev_date_added":null,"published":"2017-02-13"},{"cvss_score":6.1,"headline":"Cross-site scripting in Moxa NPort","id":"CVE-2016-9371","kev_date_added":null,"published":"2017-02-13"}],"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":"total"},"state":"PUBLISHED","updated":"2026-06-02","vendors":["n/a"]},"summary":"Attackers can bypass authentication on Moxa NPort devices by brute-forcing parameters, allowing unauthorized access to the device.","url":"https://insights.sbomify.com/CVE-2016-9366/"}