{"id":"CVE-2020-10023","aliases":["EUVD-2020-2488","GHSA-ccj2-xhg7-jrxc"],"status":"published","title":"Shell Subsystem Contains a Buffer Overflow Vulnerability In shell_spaces_trim","description":"The shell subsystem contains a buffer overflow, whereby an adversary with physical access to the device is able to cause a memory corruption, resulting in denial of service or possibly code execution within the Zephyr kernel. See NCC-NCC-019 This issue affects: zephyrproject-rtos zephyr version 1.14.0 and later versions. version 2.1.0 and later versions.","severity":{"version":"3.1","score":6.9,"vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00474,"percentile":0.41296,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2020-05-11T22:26:13Z","modified":"2026-06-17T02:47:13Z","products":[{"vendor":"zephyrproject","product":"zephyr"},{"vendor":"zephyrproject-rtos","product":"zephyr"}],"references":[{"url":"https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-29","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://github.com/zephyrproject-rtos/zephyr/pull/23304","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://github.com/zephyrproject-rtos/zephyr/pull/23646","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://github.com/zephyrproject-rtos/zephyr/pull/23649","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10023","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-10023"},{"url":"https://docs.zephyrproject.org/latest/security/vulnerabilities.html#CVE-2020-10023"},{"url":"https://github.com/advisories/GHSA-ccj2-xhg7-jrxc"}],"sources":{"cve":[{"id":"CVE-2020-10023","title":"Shell Subsystem Contains a Buffer Overflow Vulnerability In shell_spaces_trim","description":"The shell subsystem contains a buffer overflow, whereby an adversary with physical access to the device is able to cause a memory corruption, resulting in denial of service or possibly code execution within the Zephyr kernel. See NCC-NCC-019 This issue affects: zephyrproject-rtos zephyr version 1.14.0 and later versions. version 2.1.0 and later versions.","status":"published","published":"2020-05-11T22:26:13.032Z","modified":"2024-09-16T18:03:31.215Z","cvss":[{"version":"3.1","score":6.9,"vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:35:47.877975Z"}],"euvd":[{"id":"EUVD-2020-2488","description":"The shell subsystem contains a buffer overflow, whereby an adversary with physical access to the device is able to cause a memory corruption, resulting in denial of service or possibly code execution within the Zephyr kernel. See NCC-NCC-019 This issue affects: zephyrproject-rtos zephyr version 1.14.0 and later versions. version 2.1.0 and later versions.","status":"published","published":"2020-05-11T22:26:13Z","modified":"2024-09-16T18:03:31Z","cvss":[{"version":"3.1","score":6.9,"vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-03T00:55:36.293033Z"}],"ghsa":[{"id":"GHSA-ccj2-xhg7-jrxc","title":"The shell subsystem contains a buffer overflow, whereby an adversary with physical access to the...","description":"The shell subsystem contains a buffer overflow, whereby an adversary with physical access to the device is able to cause a memory corruption, resulting in denial of service or possibly code execution within the Zephyr kernel. See NCC-NCC-019 This issue affects: zephyrproject-rtos zephyr version 1.14.0 and later versions. version 2.1.0 and later versions.","status":"published","published":"2022-05-24T17:17:38Z","modified":"2023-01-29T05:02:36Z","updated_at":"2026-11-02T14:45:07.602262Z"}],"nvd":[{"id":"CVE-2020-10023","description":"The shell subsystem contains a buffer overflow, whereby an adversary with physical access to the device is able to cause a memory corruption, resulting in denial of service or possibly code execution within the Zephyr kernel. See NCC-NCC-019 This issue affects: zephyrproject-rtos zephyr version 1.14.0 and later versions. version 2.1.0 and later versions.","status":"published","published":"2020-05-11T23:15:11.52Z","modified":"2026-06-17T02:47:13.453Z","cvss":[{"version":"3.1","score":6.9,"vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:06:00.784809Z"}]}}