{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-43983 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-43983 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-43983 is a high-severity memory corruption vulnerability in WECON LeviStudioU, published on 13 Dec 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-2021-43983 and fix it if it is affected.\n\nWhat it is: CVE-2021-43983 is a high-severity memory corruption vulnerability in WECON LeviStudioU, published on 13 Dec 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-2021-43983 in the wild and no public exploit code.\n\nAffected product: WECON LeviStudioU. 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-2021-43983/ (Markdown: https://insights.sbomify.com/CVE-2021-43983/index.md)","id":"CVE-2021-43983","markdown":"https://insights.sbomify.com/CVE-2021-43983/index.md","name":"CVE-2021-43983","record":{"aliases":["GHSA-6f9g-vc76-v447"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Industrial HMI software","requires_auth":"none","summary":"An attacker can execute arbitrary code by tricking a user into opening a malicious project file in WECON LeviStudioU.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"levistudiou","vendor":"we-con"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to multiple stack-based buffer overflow instances while parsing project files, which may allow an attacker to execute arbitrary code.","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":"WECON LeviStudioU","id":"CVE-2021-43983","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":15,"next":{"headline":"mySCADA myPRO","id":"CVE-2021-43984"},"packages":[],"prev":{"headline":"Delta Electronics CNCSoft","id":"CVE-2021-43982"},"products":["LeviStudioU"],"published":"2021-12-13","related":[{"cvss_score":8.8,"headline":"Memory corruption in LeviStudioU","id":"CVE-2018-10610","kev_date_added":null,"published":"2018-10-09"},{"cvss_score":8.8,"headline":"XML external entity in LeviStudioU","id":"CVE-2018-10614","kev_date_added":null,"published":"2018-10-09"},{"cvss_score":8.8,"headline":"Memory corruption in LeviStudioU","id":"CVE-2018-10602","kev_date_added":null,"published":"2018-09-26"},{"cvss_score":8.8,"headline":"Memory corruption in LeviStudioU","id":"CVE-2018-10606","kev_date_added":null,"published":"2018-09-26"},{"cvss_score":7.8,"headline":"WECON LeviStudioU","id":"CVE-2021-23138","kev_date_added":null,"published":"2022-01-14"},{"cvss_score":7.8,"headline":"WECON LeviStudioU","id":"CVE-2021-23157","kev_date_added":null,"published":"2022-01-14"}],"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":"2024-09-17","vendors":["WECON"]},"summary":"An attacker can execute arbitrary code by tricking a user into opening a malicious project file in WECON LeviStudioU.","url":"https://insights.sbomify.com/CVE-2021-43983/"}