{"id":"CVE-2018-1635","aliases":["EUVD-2018-12214","GHSA-5398-f28q-m8pc"],"status":"published","title":"Stack-based buffer overflow in oninit in IBM Informix Dynamic Server Enterprise Edition 12.1...","description":"Stack-based buffer overflow in oninit in IBM Informix Dynamic Server Enterprise Edition 12.1 allows an authenticated user to execute predefined code with root privileges, such as escalating to a root shell. IBM X-Force ID: 144439.","severity":{"version":"3.0","score":8.2,"vector":"CVSS:3.0/C:H/PR:H/I:H/UI:N/S:C/AC:L/A:H/AV:L/RL:O/RC:C/E:U","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00439,"percentile":0.38454,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2019-08-20T18:50:22Z","modified":"2026-06-17T01:51:31Z","products":[{"vendor":"ibm","product":"informix dynamic server enterprise edition"},{"vendor":"ibm","product":"informix_dynamic_server"}],"references":[{"url":"http://www.ibm.com/support/docview.wss?uid=ibm10964987","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/144439","tags":["vdb-entry","x_refsource_XF","x_transferred","VDB Entry","Vendor Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20190903-0002/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-1635"},{"url":"https://github.com/advisories/GHSA-5398-f28q-m8pc"}],"sources":{"cve":[{"id":"CVE-2018-1635","description":"Stack-based buffer overflow in oninit in IBM Informix Dynamic Server Enterprise Edition 12.1 allows an authenticated user to execute predefined code with root privileges, such as escalating to a root shell. IBM X-Force ID: 144439.","status":"published","published":"2019-08-20T18:50:22.913Z","modified":"2024-09-16T23:26:50.037Z","cvss":[{"version":"3.0","score":8.2,"vector":"CVSS:3.0/C:H/PR:H/I:H/UI:N/S:C/AC:L/A:H/AV:L/RL:O/RC:C/E:U","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:35:08.701206Z"}],"euvd":[{"id":"EUVD-2018-12214","description":"Stack-based buffer overflow in oninit in IBM Informix Dynamic Server Enterprise Edition 12.1 allows an authenticated user to execute predefined code with root privileges, such as escalating to a root shell. IBM X-Force ID: 144439.","status":"published","published":"2019-08-20T18:50:22Z","modified":"2024-09-16T23:26:50Z","cvss":[{"version":"3.0","score":8.2,"vector":"CVSS:3.0/C:H/PR:H/I:H/UI:N/S:C/AC:L/A:H/AV:L/RL:O/RC:C/E:U","level":"high"}],"updated_at":"2026-11-03T00:54:50.364031Z"}],"ghsa":[{"id":"GHSA-5398-f28q-m8pc","title":"Stack-based buffer overflow in oninit in IBM Informix Dynamic Server Enterprise Edition 12.1...","description":"Stack-based buffer overflow in oninit in IBM Informix Dynamic Server Enterprise Edition 12.1 allows an authenticated user to execute predefined code with root privileges, such as escalating to a root shell. IBM X-Force ID: 144439.","status":"published","published":"2022-05-24T16:54:02Z","modified":"2023-02-24T00:30:16Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:54:13.537745Z"}],"nvd":[{"id":"CVE-2018-1635","description":"Stack-based buffer overflow in oninit in IBM Informix Dynamic Server Enterprise Edition 12.1 allows an authenticated user to execute predefined code with root privileges, such as escalating to a root shell. IBM X-Force ID: 144439.","status":"published","published":"2019-08-20T19:15:10.29Z","modified":"2026-06-17T01:51:31.117Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"3.0","score":8.2,"vector":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"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":"2026-11-02T14:04:59.278647Z"}]}}