{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-23138 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-23138 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-23138 is a high-severity memory corruption vulnerability in WECON LeviStudioU, published on 14 Jan 2022. 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-2021-23138 and fix it if it is affected.\n\nWhat it is: CVE-2021-23138 is a high-severity memory corruption vulnerability in WECON LeviStudioU, published on 14 Jan 2022. 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-2021-23138 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-2021-23138/ (Markdown: https://insights.sbomify.com/CVE-2021-23138/index.md)","id":"CVE-2021-23138","markdown":"https://insights.sbomify.com/CVE-2021-23138/index.md","name":"CVE-2021-23138","record":{"aliases":["GHSA-rvhx-r576-jx25"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Industrial HMI software","requires_auth":"none","summary":"A stack-based buffer overflow in WECON LeviStudioU allows remote attackers to execute arbitrary code.","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 a stack-based buffer overflow, which may allow an attacker to remotely execute 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-2021-23138","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":13,"next":{"headline":"Null dereference in Trend Micro Apex One","id":"CVE-2021-23139"},"packages":[],"prev":{"headline":"Missing authorization in Command Centre","id":"CVE-2021-23136"},"products":["LeviStudioU"],"published":"2022-01-14","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-2021-23157","kev_date_added":null,"published":"2022-01-14"},{"cvss_score":7.8,"headline":"WECON LeviStudioU","id":"CVE-2021-43983","kev_date_added":null,"published":"2021-12-13"}],"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-04-16","vendors":["WECON"]},"summary":"A stack-based buffer overflow in WECON LeviStudioU allows remote attackers to execute arbitrary code.","url":"https://insights.sbomify.com/CVE-2021-23138/"}