{"id":"CVE-2020-10019","aliases":["EUVD-2020-2484","GHSA-qv66-5g67-qh59"],"status":"published","title":"Buffer Overflow in USB DFU requested length","description":"USB DFU has a potential buffer overflow where the requested length (wLength) is not checked against the buffer size. This could be used by a malicious USB host to exploit the buffer overflow. See NCC-ZEP-002 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00451,"percentile":0.39532,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2020-05-11T22:26:11Z","modified":"2026-06-17T02:47:12Z","products":[{"vendor":"zephyrproject","product":"zephyr"},{"vendor":"zephyrproject-rtos","product":"zephyr"}],"references":[{"url":"https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-25","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://github.com/zephyrproject-rtos/zephyr/pull/23190","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://github.com/zephyrproject-rtos/zephyr/pull/23457","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://github.com/zephyrproject-rtos/zephyr/pull/23460","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10019","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-10019"},{"url":"https://docs.zephyrproject.org/latest/security/vulnerabilities.html#CVE-2020-10019"},{"url":"https://github.com/advisories/GHSA-qv66-5g67-qh59"}],"sources":{"cve":[{"id":"CVE-2020-10019","title":"Buffer Overflow in USB DFU requested length","description":"USB DFU has a potential buffer overflow where the requested length (wLength) is not checked against the buffer size. This could be used by a malicious USB host to exploit the buffer overflow. See NCC-ZEP-002 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.","status":"published","published":"2020-05-11T22:26:11.452Z","modified":"2024-09-17T02:12:14.643Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:35:47.877975Z"}],"euvd":[{"id":"EUVD-2020-2484","description":"USB DFU has a potential buffer overflow where the requested length (wLength) is not checked against the buffer size. This could be used by a malicious USB host to exploit the buffer overflow. See NCC-ZEP-002 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.","status":"published","published":"2020-05-11T22:26:11Z","modified":"2024-09-17T02:12:14Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:28:42.412483Z"}],"ghsa":[{"id":"GHSA-qv66-5g67-qh59","title":"USB DFU has a potential buffer overflow where the requested length (wLength) is not checked...","description":"USB DFU has a potential buffer overflow where the requested length (wLength) is not checked against the buffer size. This could be used by a malicious USB host to exploit the buffer overflow. See NCC-ZEP-002 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.","status":"published","published":"2022-05-24T17:17:38Z","modified":"2023-01-29T05:02:35Z","updated_at":"2026-11-02T14:45:07.602262Z"}],"nvd":[{"id":"CVE-2020-10019","description":"USB DFU has a potential buffer overflow where the requested length (wLength) is not checked against the buffer size. This could be used by a malicious USB host to exploit the buffer overflow. See NCC-ZEP-002 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.","status":"published","published":"2020-05-11T23:15:11.317Z","modified":"2026-06-17T02:47:12.94Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"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":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"}]}}