{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2019-20031 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2019-20031 yet. Limit exposure of the affected software until one is available.","what":"CVE-2019-20031 is a critical authentication bypass vulnerability in n/a, published on 29 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-20031 and fix it if it is affected.\n\nWhat it is: CVE-2019-20031 is a critical authentication bypass vulnerability in n/a, published on 29 Jul 2020. 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-2019-20031 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-2019-20031/ (Markdown: https://insights.sbomify.com/CVE-2019-20031/index.md)","id":"CVE-2019-20031","markdown":"https://insights.sbomify.com/CVE-2019-20031/index.md","name":"CVE-2019-20031","record":{"aliases":["GHSA-xmx2-vxw5-6rg6"],"analysis":{"component_type":"server_software","fix_type":"no_fix_stated","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Voicemail system","requires_auth":"none","summary":"Attackers can brute force login attempts on NEC voicemail systems due to lack of rate limiting, potentially gaining unauthorized access.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"um4730_firmware","vendor":"nec"},{"product":"um8000_firmware","vendor":"nec"}],"cvss":{"score":9.1,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-307","name":"Improper Restriction of Excessive Authentication Attempts"}],"description":"NEC UM8000, UM4730 and prior non-InMail voicemail systems with all known software versions may permit an infinite number of login attempts in the telephone user interface (TUI), effectively allowing brute force attacks.","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 n/a","id":"CVE-2019-20031","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2019"},"n_packages":0,"n_references":1,"next":{"headline":"Auth bypass in n/a","id":"CVE-2019-20032"},"packages":[],"prev":{"headline":"Auth bypass in n/a","id":"CVE-2019-20030"},"products":["n/a"],"published":"2020-07-29","related":[],"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":"2024-08-05","vendors":["n/a"]},"summary":"Attackers can brute force login attempts on NEC voicemail systems due to lack of rate limiting, potentially gaining unauthorized access.","url":"https://insights.sbomify.com/CVE-2019-20031/"}