{"answers":{"affected":"It affects 5 products.","exploited":"There is no known exploitation of CVE-2020-5594 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-5594 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-5594 is a critical vulnerability in Mitsubishi Electric Corporation MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules, published on 23 Jun 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-2020-5594 and fix it if it is affected.\n\nWhat it is: CVE-2020-5594 is a critical vulnerability in Mitsubishi Electric Corporation MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules, published on 23 Jun 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-2020-5594 in the wild and no public exploit code.\n\nAffected product: Mitsubishi Electric Corporation MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules. 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-2020-5594/ (Markdown: https://insights.sbomify.com/CVE-2020-5594/index.md)","id":"CVE-2020-5594","markdown":"https://insights.sbomify.com/CVE-2020-5594/index.md","name":"CVE-2020-5594","record":{"aliases":["GHSA-2vf3-pgp6-m4w5"],"analysis":{"component_type":"ics_ot","fix_type":"no_fix_stated","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"PLC CPU modules","requires_auth":"none","summary":"Attackers can intercept sensitive information transmitted in cleartext between Mitsubishi PLC CPU modules and engineering software.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"melsec-fx_firmware","vendor":"mitsubishielectric"},{"product":"melsec-l_firmware","vendor":"mitsubishielectric"},{"product":"melsec-q_firmware","vendor":"mitsubishielectric"},{"product":"melsec_iq-f_firmware","vendor":"mitsubishielectric"},{"product":"melsec_iq-r_firmware","vendor":"mitsubishielectric"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","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-319","name":"Cleartext Transmission of Sensitive Information"}],"description":"Mitsubishi Electric MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules all versions contain a vulnerability that allows cleartext transmission of sensitive information between CPU modules and GX Works3 and/or GX Works2 via unspecified vectors.","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":"Information disclosure in MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules","id":"CVE-2020-5594","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2020"},"n_packages":0,"n_references":3,"next":{"headline":"Memory corruption in GOT2000 series GT27, GT25, and GT23","id":"CVE-2020-5595"},"packages":[],"prev":{"headline":"Code injection in Zenphoto","id":"CVE-2020-5593"},"products":["MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules"],"published":"2020-06-23","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":"2024-08-04","vendors":["Mitsubishi Electric Corporation"]},"summary":"Attackers can intercept sensitive information transmitted in cleartext between Mitsubishi PLC CPU modules and engineering software.","url":"https://insights.sbomify.com/CVE-2020-5594/"}