{"answers":{"affected":"It affects 18 products.","exploited":"There is no known exploitation of CVE-2021-27458 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-27458 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-27458 is a high-severity denial of service vulnerability in JTEKT Corporation TOYOPUC products, published on 19 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-27458 and fix it if it is affected.\n\nWhat it is: CVE-2021-27458 is a high-severity denial of service vulnerability in JTEKT Corporation TOYOPUC products, published on 19 Apr 2021. 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-2021-27458 in the wild and no public exploit code.\n\nAffected product: JTEKT Corporation TOYOPUC products. 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-2021-27458/ (Markdown: https://insights.sbomify.com/CVE-2021-27458/index.md)","id":"CVE-2021-27458","markdown":"https://insights.sbomify.com/CVE-2021-27458/index.md","name":"CVE-2021-27458","record":{"aliases":["GHSA-qmc4-q85x-pjh3"],"analysis":{"component_type":"ics_ot","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Industrial PLC","requires_auth":"none","summary":"An attacker can cause a denial of service by leaving Ethernet communication open, preventing connections with other devices in JTEKT TOYOPUC products.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"2port-efr_thu-6404_firmware","vendor":"jtekt"},{"product":"fl\\/et-t-v2h_thu-6289_firmware","vendor":"jtekt"},{"product":"pc10b-e\\/c_tcu-6521_firmware","vendor":"jtekt"},{"product":"pc10b-p_tcc-6373_firmware","vendor":"jtekt"},{"product":"pc10b_tcc-1021_firmware","vendor":"jtekt"},{"product":"pc10e_tcc-4737_firmware","vendor":"jtekt"},{"product":"pc10g-cpu_tcc-6353_firmware","vendor":"jtekt"},{"product":"pc10ge_tcc-6464_firmware","vendor":"jtekt"},{"product":"pc10p-dp-io_tcc-6752_firmware","vendor":"jtekt"},{"product":"pc10p-dp_tcc-6726_firmware","vendor":"jtekt"},{"product":"pc10p_tcc-6372_firmware","vendor":"jtekt"},{"product":"plus_2p-efr_tcu-6929_firmware","vendor":"jtekt"},{"product":"plus_bus-ex_tcu-6900_firmware","vendor":"jtekt"},{"product":"plus_cpu_tcc-6740_firmware","vendor":"jtekt"},{"product":"plus_efr2_tcu-6859_firmware","vendor":"jtekt"},{"product":"plus_efr_tcu-6743_firmware","vendor":"jtekt"},{"product":"plus_ex2_tcu-6858_firmware","vendor":"jtekt"},{"product":"plus_ex_tcu-6741_firmware","vendor":"jtekt"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","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-404","name":"Improper Resource Shutdown or Release"}],"description":"If Ethernet communication of the JTEKT Corporation TOYOPUC product series’ (TOYOPUC-PC10 Series: PC10G-CPU TCC-6353: All versions, PC10GE TCC-6464: All versions, PC10P TCC-6372: All versions, PC10P-DP TCC-6726: All versions, PC10P-DP-IO TCC-6752: All versions, PC10B-P TCC-6373: All versions, PC10B TCC-1021: All versions, PC10B-E/C TCU-6521: All versions, PC10E TCC-4737: All versions; TOYOPUC-Plus Series: Plus CPU TCC-6740: All versions, Plus EX TCU-6741: All versions, Plus EX2 TCU-6858: All versions, Plus EFR TCU-6743: All versions, Plus EFR2 TCU-6859: All versions, Plus 2P-EFR TCU-6929: All versions, Plus BUS-EX TCU-6900: All versions; TOYOPUC-PC3J/PC2J Series: FL/ET-T-V2H THU-6289: All versions, 2PORT-EFR THU-6404: All versions) are left in an open state by an attacker, Ethernet communications cannot be established with other devices, depending on the settings of the link parameters.","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 JTEKT Corporation TOYOPUC products","id":"CVE-2021-27458","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"File upload in Emerson Rosemount X-STREAM Gas Analyzer","id":"CVE-2021-27459"},"packages":[],"prev":{"headline":"Weak cryptography in Emerson Rosemount X-STREAM Gas Analyzer","id":"CVE-2021-27457"},"products":["JTEKT Corporation TOYOPUC products"],"published":"2021-04-19","related":[{"cvss_score":4.3,"headline":"Denial of service in JTEKT Corporation TOYOPUC products","id":"CVE-2021-33011","kev_date_added":null,"published":"2021-09-10"}],"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":"An attacker can cause a denial of service by leaving Ethernet communication open, preventing connections with other devices in JTEKT TOYOPUC products.","url":"https://insights.sbomify.com/CVE-2021-27458/"}