{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-42687 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-42687 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-42687 is a high-severity memory corruption vulnerability in n/a, published on 7 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-42687 and fix it if it is affected.\n\nWhat it is: CVE-2021-42687 is a high-severity memory corruption vulnerability in n/a, published on 7 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-42687 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2021-42687/ (Markdown: https://insights.sbomify.com/CVE-2021-42687/index.md)","id":"CVE-2021-42687","markdown":"https://insights.sbomify.com/CVE-2021-42687/index.md","name":"CVE-2021-42687","record":{"aliases":["GHSA-9pcg-8c48-p52v"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"HyWorks Windows Client","requires_auth":"low_privilege","summary":"Local attackers can execute arbitrary kernel-mode code or crash the system via a buffer overflow in the HyWorks Windows Client IOCTL handler.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"hyworks_windows_client","vendor":"accops"}],"cvss":{"score":8.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"A Buffer Overflow vulnerability exists in Accops HyWorks Windows Client prior to v 3.2.8.200. The IOCTL Handler 0x22005B allows local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.","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 n/a","id":"CVE-2021-42687","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Integer overflow in n/a","id":"CVE-2021-42688"},"packages":[],"prev":{"headline":"Integer overflow in n/a","id":"CVE-2021-42686"},"products":["n/a"],"published":"2021-12-07","related":[{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2021-42683","kev_date_added":null,"published":"2021-12-07"},{"cvss_score":8.8,"headline":"Integer overflow in n/a","id":"CVE-2021-42686","kev_date_added":null,"published":"2021-12-07"},{"cvss_score":8.8,"headline":"Integer overflow in n/a","id":"CVE-2021-42688","kev_date_added":null,"published":"2021-12-07"}],"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":["n/a"]},"summary":"Local attackers can execute arbitrary kernel-mode code or crash the system via a buffer overflow in the HyWorks Windows Client IOCTL handler.","url":"https://insights.sbomify.com/CVE-2021-42687/"}