{"id":"CVE-2019-11867","aliases":["EUVD-2019-3527","GHSA-5fj4-62hp-5pfc"],"status":"published","title":"Realtek NDIS driver rt640x64.sys, file version 10.1.505.2015, fails to do any size checking on an...","description":"Realtek NDIS driver rt640x64.sys, file version 10.1.505.2015, fails to do any size checking on an input buffer from user space, which the driver assumes has a size greater than zero bytes. To exploit this vulnerability, an attacker must send an IRP with a system buffer size of 0.","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":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00284,"percentile":0.21193,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2020-02-12T17:25:20Z","modified":"2026-06-17T02:13:46Z","products":[{"vendor":"realtek","product":"ndis"}],"references":[{"url":"https://downwithup.github.io/CVEPosts.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://www.realtek.cz/realtek-network-drivers.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-11867"},{"url":"https://github.com/advisories/GHSA-5fj4-62hp-5pfc"}],"sources":{"cve":[{"id":"CVE-2019-11867","description":"Realtek NDIS driver rt640x64.sys, file version 10.1.505.2015, fails to do any size checking on an input buffer from user space, which the driver assumes has a size greater than zero bytes. To exploit this vulnerability, an attacker must send an IRP with a system buffer size of 0.","status":"published","published":"2020-02-12T17:25:20Z","modified":"2024-08-04T23:03:33.147Z","updated_at":"2026-11-02T14:32:22.432545Z"}],"euvd":[{"id":"EUVD-2019-3527","description":"Realtek NDIS driver rt640x64.sys, file version 10.1.505.2015, fails to do any size checking on an input buffer from user space, which the driver assumes has a size greater than zero bytes. To exploit this vulnerability, an attacker must send an IRP with a system buffer size of 0.","status":"published","published":"2020-02-12T17:25:20Z","modified":"2024-08-04T23:03:33Z","updated_at":"2026-11-03T02:40:47.960625Z"}],"ghsa":[{"id":"GHSA-5fj4-62hp-5pfc","title":"Realtek NDIS driver rt640x64.sys, file version 10.1.505.2015, fails to do any size checking on an...","description":"Realtek NDIS driver rt640x64.sys, file version 10.1.505.2015, fails to do any size checking on an input buffer from user space, which the driver assumes has a size greater than zero bytes. To exploit this vulnerability, an attacker must send an IRP with a system buffer size of 0.","status":"published","published":"2022-05-24T17:08:44Z","modified":"2023-01-29T05:01:31Z","updated_at":"2026-11-02T14:44:50.331765Z"}],"nvd":[{"id":"CVE-2019-11867","description":"Realtek NDIS driver rt640x64.sys, file version 10.1.505.2015, fails to do any size checking on an input buffer from user space, which the driver assumes has a size greater than zero bytes. To exploit this vulnerability, an attacker must send an IRP with a system buffer size of 0.","status":"published","published":"2020-02-12T18:15:10.283Z","modified":"2026-06-17T02:13:46.173Z","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":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:05:43.875329Z"}]}}