{"id":"CVE-2021-34405","aliases":["EUVD-2021-21063","GHSA-78wc-5whv-3wwg"],"status":"published","title":"NVIDIA Linux distributions contain a vulnerability in TrustZone’s TEE_Malloc function, where an...","description":"NVIDIA Linux distributions contain a vulnerability in TrustZone’s TEE_Malloc function, where an unchecked return value causing a null pointer dereference may lead to denial of service.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00227,"percentile":0.13577,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-252","CWE-476"],"published":"2022-01-18T18:05:28Z","modified":"2026-06-17T03:55:47Z","products":[{"vendor":"nvidia","product":"shield tv"},{"vendor":"nvidia","product":"shield_experience"}],"references":[{"url":"https://nvidia.custhelp.com/app/answers/detail/a_id/5259","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34405"},{"url":"https://github.com/advisories/GHSA-78wc-5whv-3wwg"}],"sources":{"cve":[{"id":"CVE-2021-34405","description":"NVIDIA Linux distributions contain a vulnerability in TrustZone’s TEE_Malloc function, where an unchecked return value causing a null pointer dereference may lead to denial of service.","status":"published","published":"2022-01-18T18:05:28Z","modified":"2024-08-04T00:12:50.082Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:33:11.59359Z"}],"euvd":[{"id":"EUVD-2021-21063","description":"NVIDIA Linux distributions contain a vulnerability in TrustZone’s TEE_Malloc function, where an unchecked return value causing a null pointer dereference may lead to denial of service.","status":"published","published":"2022-01-18T18:05:28Z","modified":"2024-08-04T00:12:50Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T03:24:32.445199Z"}],"ghsa":[{"id":"GHSA-78wc-5whv-3wwg","title":"NVIDIA Linux distributions contain a vulnerability in TrustZone’s TEE_Malloc function, where an...","description":"NVIDIA Linux distributions contain a vulnerability in TrustZone’s TEE_Malloc function, where an unchecked return value causing a null pointer dereference may lead to denial of service.","status":"published","published":"2022-01-19T00:00:54Z","modified":"2023-08-17T05:01:40Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:54:45.250925Z"}],"nvd":[{"id":"CVE-2021-34405","description":"NVIDIA Linux distributions contain a vulnerability in TrustZone’s TEE_Malloc function, where an unchecked return value causing a null pointer dereference may lead to denial of service.","status":"published","published":"2022-01-18T18:15:08.11Z","modified":"2026-06-17T03:55:47.86Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-252"],"updated_at":"2026-11-02T14:07:03.821385Z"}]}}