{"id":"CVE-2021-32458","aliases":["EUVD-2021-19312","GHSA-pf2v-6j36-j2xg"],"status":"published","title":"A privilege escalation vulnerability exists in the tdts.ko chrdev_ioctl_handle functionality of...","description":"Trend Micro Home Network Security version 6.6.604 and earlier is vulnerable to an iotcl stack-based buffer overflow vulnerability which could allow an attacker to issue a specially crafted iotcl which could lead to code execution on affected devices. An attacker must first obtain the ability to execute low-privileged code on the target device in order to exploit this vulnerability.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00392,"percentile":0.33822,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-05-27T10:34:17Z","modified":"2026-06-17T03:52:58Z","products":[{"vendor":"trend micro","product":"trend micro home network security"},{"vendor":"trendmicro","product":"home_network_security"}],"references":[{"url":"https://helpcenter.trendmicro.com/en-us/article/TMKA-10337","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1231","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32458"},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1231"},{"url":"https://github.com/advisories/GHSA-pf2v-6j36-j2xg"}],"sources":{"cve":[{"id":"CVE-2021-32458","description":"Trend Micro Home Network Security version 6.6.604 and earlier is vulnerable to an iotcl stack-based buffer overflow vulnerability which could allow an attacker to issue a specially crafted iotcl which could lead to code execution on affected devices. An attacker must first obtain the ability to execute low-privileged code on the target device in order to exploit this vulnerability.","status":"published","published":"2021-05-27T10:34:17Z","modified":"2024-08-03T23:17:29.56Z","updated_at":"2026-11-02T14:33:07.014772Z"}],"euvd":[{"id":"EUVD-2021-19312","description":"Trend Micro Home Network Security version 6.6.604 and earlier is vulnerable to an iotcl stack-based buffer overflow vulnerability which could allow an attacker to issue a specially crafted iotcl which could lead to code execution on affected devices. An attacker must first obtain the ability to execute low-privileged code on the target device in order to exploit this vulnerability.","status":"published","published":"2021-05-27T10:34:17Z","modified":"2024-08-03T23:17:29Z","updated_at":"2026-11-03T03:24:36.852603Z"}],"ghsa":[{"id":"GHSA-pf2v-6j36-j2xg","title":"A privilege escalation vulnerability exists in the tdts.ko chrdev_ioctl_handle functionality of...","description":"A privilege escalation vulnerability exists in the tdts.ko chrdev_ioctl_handle functionality of Trend Micro, Inc. Home Network Security 6.1.567. A specially crafted ioctl can lead to code execution. An attacker can issue an ioctl to trigger this vulnerability.","status":"published","published":"2022-05-24T19:03:31Z","modified":"2023-01-29T05:07:47Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:11.123221Z"}],"nvd":[{"id":"CVE-2021-32458","description":"Trend Micro Home Network Security version 6.6.604 and earlier is vulnerable to an iotcl stack-based buffer overflow vulnerability which could allow an attacker to issue a specially crafted iotcl which could lead to code execution on affected devices. An attacker must first obtain the ability to execute low-privileged code on the target device in order to exploit this vulnerability.","status":"published","published":"2021-05-27T11:15:07.313Z","modified":"2026-06-17T03:52:58.903Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:53.987491Z"}]}}