{"id":"CVE-2019-19820","aliases":["EUVD-2019-9418","GHSA-4q44-xggm-4fc7"],"status":"published","title":"An invalid pointer vulnerability in IOCTL Handling in the kyrld.sys driver in Kyrol Internet...","description":"An invalid pointer vulnerability in IOCTL Handling in the kyrld.sys driver in Kyrol Internet Security 9.0.6.9 allows an attacker to achieve privilege escalation, denial-of-service, and code execution via usermode because 0x9C402405 using METHOD_NEITHER results in a read primitive.","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":"2026-11-09","score":0.00651,"percentile":0.515,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-763"],"published":"2019-12-16T20:07:36Z","modified":"2026-06-17T02:27:17Z","products":[{"vendor":"kyrol","product":"internet_security"}],"references":[{"url":"https://nafiez.github.io/security/vulnerability/2019/12/04/kyrol-internet-security-invalid-pointer-vulnerability.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://github.com/nafiez/nafiez.github.io/blob/master/_posts/2019-12-04-kyrol-internet-security-invalid-pointer-vulnerability.md","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-19820"},{"url":"https://github.com/advisories/GHSA-4q44-xggm-4fc7"}],"sources":{"cve":[{"id":"CVE-2019-19820","description":"An invalid pointer vulnerability in IOCTL Handling in the kyrld.sys driver in Kyrol Internet Security 9.0.6.9 allows an attacker to achieve privilege escalation, denial-of-service, and code execution via usermode because 0x9C402405 using METHOD_NEITHER results in a read primitive.","status":"published","published":"2019-12-16T20:07:36Z","modified":"2024-08-05T02:25:12.695Z","updated_at":"2026-11-02T14:20:21.059499Z"}],"euvd":[{"id":"EUVD-2019-9418","description":"An invalid pointer vulnerability in IOCTL Handling in the kyrld.sys driver in Kyrol Internet Security 9.0.6.9 allows an attacker to achieve privilege escalation, denial-of-service, and code execution via usermode because 0x9C402405 using METHOD_NEITHER results in a read primitive.","status":"published","published":"2019-12-16T20:07:36Z","modified":"2024-08-05T02:25:12Z","updated_at":"2026-11-03T02:40:24.313121Z"}],"ghsa":[{"id":"GHSA-4q44-xggm-4fc7","title":"An invalid pointer vulnerability in IOCTL Handling in the kyrld.sys driver in Kyrol Internet...","description":"An invalid pointer vulnerability in IOCTL Handling in the kyrld.sys driver in Kyrol Internet Security 9.0.6.9 allows an attacker to achieve privilege escalation, denial-of-service, and code execution via usermode because 0x9C402405 using METHOD_NEITHER results in a read primitive.","status":"published","published":"2022-05-24T17:06:02Z","modified":"2023-01-29T05:01:05Z","updated_at":"2026-11-02T14:44:44.036588Z"}],"nvd":[{"id":"CVE-2019-19820","description":"An invalid pointer vulnerability in IOCTL Handling in the kyrld.sys driver in Kyrol Internet Security 9.0.6.9 allows an attacker to achieve privilege escalation, denial-of-service, and code execution via usermode because 0x9C402405 using METHOD_NEITHER results in a read primitive.","status":"published","published":"2020-01-10T17:15:13.563Z","modified":"2026-06-17T02:27:17.77Z","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-763"],"updated_at":"2026-11-02T14:05:42.416368Z"}]}}