{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-20836 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20836 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20836 is a medium-severity memory corruption vulnerability in OMRON CX-Supervisor, published on 19 Oct 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-20836 and fix it if it is affected.\n\nWhat it is: CVE-2021-20836 is a medium-severity memory corruption vulnerability in OMRON CX-Supervisor, published on 19 Oct 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-20836 in the wild and no public exploit code.\n\nAffected product: OMRON CX-Supervisor. 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-2021-20836/ (Markdown: https://insights.sbomify.com/CVE-2021-20836/index.md)","id":"CVE-2021-20836","markdown":"https://insights.sbomify.com/CVE-2021-20836/index.md","name":"CVE-2021-20836","record":{"aliases":["GHSA-vphf-83wr-763v"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["data_read","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"SCADA HMI software","requires_auth":"high_privilege","summary":"An attacker with admin privileges can trigger an out-of-bounds read via crafted project files, leading to information disclosure or code execution in OMRON CX-Supervisor.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"cx-supervisor","vendor":"omron"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"Out-of-bounds read vulnerability in CX-Supervisor v4.0.0.13 and v4.0.0.16 allows an attacker with administrative privileges to cause information disclosure and/or arbitrary code execution by opening a specially crafted SCS project files.","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":"Memory corruption in OMRON CX-Supervisor","id":"CVE-2021-20836","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Command injection in Movable Type","id":"CVE-2021-20837"},"packages":[],"prev":{"headline":"Missing authorization in Android App 'Mercari (Merpay) - Marketplace and Mobile Payments App' (Japan version)","id":"CVE-2021-20835"},"products":["OMRON CX-Supervisor"],"published":"2021-10-19","related":[{"cvss_score":8.8,"headline":"Other in Omron CX-Supervisor","id":"CVE-2019-18251","kev_date_added":null,"published":"2019-11-25"},{"cvss_score":8.8,"headline":"Code injection in CX-Supervisor","id":"CVE-2018-19011","kev_date_added":null,"published":"2019-01-22"},{"cvss_score":8.8,"headline":"Use after free in CX-Supervisor","id":"CVE-2018-19017","kev_date_added":null,"published":"2019-01-22"},{"cvss_score":7.8,"headline":"Memory corruption in CX-Supervisor","id":"CVE-2018-17905","kev_date_added":null,"published":"2018-11-05"},{"cvss_score":7.8,"headline":"Use after free in CX-Supervisor","id":"CVE-2018-17909","kev_date_added":null,"published":"2018-11-05"},{"cvss_score":7.8,"headline":"Memory corruption in CX-Supervisor","id":"CVE-2018-17913","kev_date_added":null,"published":"2018-11-05"},{"cvss_score":7.3,"headline":"Memory corruption in CX-Supervisor","id":"CVE-2018-19018","kev_date_added":null,"published":"2019-02-12"}],"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":["OMRON Corporation"]},"summary":"An attacker with admin privileges can trigger an out-of-bounds read via crafted project files, leading to information disclosure or code execution in OMRON CX-Supervisor.","url":"https://insights.sbomify.com/CVE-2021-20836/"}