{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-22637 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-22637 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-22637 is a high-severity memory corruption vulnerability in Tellus Lite V-Simulator and V-Server Lite, published on 27 Jan 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-2021-22637 and fix it if it is affected.\n\nWhat it is: CVE-2021-22637 is a high-severity memory corruption vulnerability in Tellus Lite V-Simulator and V-Server Lite, published on 27 Jan 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-2021-22637 in the wild and no public exploit code.\n\nAffected product: Tellus Lite V-Simulator and V-Server Lite. 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-2021-22637/ (Markdown: https://insights.sbomify.com/CVE-2021-22637/index.md)","id":"CVE-2021-22637","markdown":"https://insights.sbomify.com/CVE-2021-22637/index.md","name":"CVE-2021-22637","record":{"aliases":["GHSA-5crv-9pfw-2jvp"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"ICS simulator software","requires_auth":"none","summary":"Attackers can execute arbitrary code by tricking users into opening malicious project files in Tellus Lite V-Simulator and V-Server Lite.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"v-server","vendor":"fujielectric"},{"product":"v-simulator","vendor":"fujielectric"}],"cvss":{"score":7.8,"severity":"high","source":"nvd","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":"Multiple stack-based buffer overflow issues have been identified in the way the application processes project files, allowing an attacker to craft a special project file that may allow arbitrary code execution on the Tellus Lite V-Simulator and V-Server Lite (versions prior to 4.0.10.0).","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 Tellus Lite V-Simulator and V-Server Lite","id":"CVE-2021-22637","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":"Memory corruption in Fatek FvDesigner","id":"CVE-2021-22638"},"packages":[],"prev":{"headline":"Texas Instruments TI-RTOS Integer Overflow or Wraparound","id":"CVE-2021-22636"},"products":["Tellus Lite V-Simulator and V-Server Lite"],"published":"2021-01-27","related":[{"cvss_score":9.8,"headline":"Memory corruption in Fuji Electric V-Server 4.0.6 and prior","id":"CVE-2019-18240","kev_date_added":null,"published":"2019-11-13"},{"cvss_score":9.8,"headline":"Hardcoded credentials in Fuji Electric V-Server","id":"CVE-2019-3947","kev_date_added":null,"published":"2019-06-12"},{"cvss_score":7.8,"headline":"Memory corruption in V-Server","id":"CVE-2023-47584","kev_date_added":null,"published":"2023-11-15"},{"cvss_score":7.8,"headline":"Memory corruption in V-Server","id":"CVE-2023-47585","kev_date_added":null,"published":"2023-11-15"},{"cvss_score":7.8,"headline":"Memory corruption in V-Server","id":"CVE-2023-47586","kev_date_added":null,"published":"2023-11-15"},{"cvss_score":7.8,"headline":"Memory corruption in V-Server and V-Server Lite","id":"CVE-2023-31239","kev_date_added":null,"published":"2023-06-19"},{"cvss_score":7.8,"headline":"Memory corruption in V-Server","id":"CVE-2022-41645","kev_date_added":null,"published":"2023-01-03"}],"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":"Attackers can execute arbitrary code by tricking users into opening malicious project files in Tellus Lite V-Simulator and V-Server Lite.","url":"https://insights.sbomify.com/CVE-2021-22637/"}