{"answers":{"affected":"It affects 3 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-40040 exists.","fix":"No fix has been published for CVE-2021-40040 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-40040 is a high-severity memory corruption vulnerability in Huawei Emui, published on 9 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-40040 and fix it if it is affected.\n\nWhat it is: CVE-2021-40040 is a high-severity memory corruption vulnerability in Huawei Emui, published on 9 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-40040 exists.\n\nAffected product: Huawei Emui. 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-2021-40040/ (Markdown: https://insights.sbomify.com/CVE-2021-40040/index.md)","id":"CVE-2021-40040","markdown":"https://insights.sbomify.com/CVE-2021-40040/index.md","name":"CVE-2021-40040","record":{"aliases":["GHSA-86g3-53hw-mw23"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Huawei mobile OS","requires_auth":"none","summary":"Attackers can write data to arbitrary memory addresses in the HW_KEYMASTER module, potentially compromising confidentiality on Huawei devices.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"huawei","cpe":[{"product":"emui","vendor":"huawei"},{"product":"harmonyos","vendor":"huawei"},{"product":"magic_ui","vendor":"huawei"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[],"description":"Vulnerability of writing data to an arbitrary address in the HW_KEYMASTER module. Successful exploitation of this vulnerability may affect confidentiality.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Memory corruption in HarmonyOS;EMUI;Magic UI","id":"CVE-2021-40040","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"huawei:emui","products":["huawei:emui","huawei:harmonyos","huawei:magic_ui"],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Cross-site scripting in WS318n-21","id":"CVE-2021-40041"},"packages":[],"prev":{"headline":"Null dereference in EMUI","id":"CVE-2021-40039"},"products":["HarmonyOS;EMUI;Magic UI"],"published":"2022-08-09","related":[{"cvss_score":9.8,"headline":"Memory corruption in EMUI","id":"CVE-2023-52370","kev_date_added":null,"published":"2024-02-18"},{"cvss_score":9.8,"headline":"Business logic in EMUI","id":"CVE-2023-52378","kev_date_added":null,"published":"2024-02-18"},{"cvss_score":9.8,"headline":"Code injection in EMUI","id":"CVE-2023-52381","kev_date_added":null,"published":"2024-02-18"},{"cvss_score":9.8,"headline":"Memory corruption in EMUI","id":"CVE-2023-52103","kev_date_added":null,"published":"2024-01-16"},{"cvss_score":9.8,"headline":"Privilege escalation in EMUI","id":"CVE-2023-46773","kev_date_added":null,"published":"2023-12-06"},{"cvss_score":9.8,"headline":"Privilege escalation in EMUI","id":"CVE-2023-44105","kev_date_added":null,"published":"2023-10-11"},{"cvss_score":9.8,"headline":"Privilege escalation in EMUI","id":"CVE-2023-44106","kev_date_added":null,"published":"2023-10-11"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-06","vendors":["n/a"]},"summary":"Attackers can write data to arbitrary memory addresses in the HW_KEYMASTER module, potentially compromising confidentiality on Huawei devices.","url":"https://insights.sbomify.com/CVE-2021-40040/"}