{"id":"CVE-2017-18212","aliases":["EUVD-2017-9345","GHSA-429f-r833-95jh","UBUNTU-CVE-2017-18212"],"status":"published","title":"An issue was discovered in JerryScript 1.0. There is a heap-based buffer over-read in the...","description":"An issue was discovered in JerryScript 1.0. There is a heap-based buffer over-read in the lit_read_code_unit_from_hex function in lit/lit-char-helpers.c via a RegExp(\"[\\x0\"); payload.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01815,"percentile":0.78829,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2018-03-01T21:00:00Z","modified":"2026-10-20T10:49:50Z","affected":[{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"iotjs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0-1"]}],"products":[{"vendor":"jerryscript","product":"jerryscript"}],"references":[{"url":"https://github.com/jerryscript-project/jerryscript/issues/2140","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18212"},{"url":"https://github.com/advisories/GHSA-429f-r833-95jh"},{"url":"https://ubuntu.com/security/CVE-2017-18212","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-18212","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2017-18212","description":"An issue was discovered in JerryScript 1.0. There is a heap-based buffer over-read in the lit_read_code_unit_from_hex function in lit/lit-char-helpers.c via a RegExp(\"[\\x0\"); payload.","status":"published","published":"2018-03-01T21:00:00Z","modified":"2024-08-05T21:13:49.153Z","updated_at":"2026-11-02T14:33:21.747294Z"}],"euvd":[{"id":"EUVD-2017-9345","description":"An issue was discovered in JerryScript 1.0. There is a heap-based buffer over-read in the lit_read_code_unit_from_hex function in lit/lit-char-helpers.c via a RegExp(\"[\\x0\"); payload.","status":"published","published":"2018-03-01T21:00:00Z","modified":"2024-08-05T21:13:49Z","updated_at":"2026-11-03T02:23:07.6199Z"}],"ghsa":[{"id":"GHSA-429f-r833-95jh","title":"An issue was discovered in JerryScript 1.0. There is a heap-based buffer over-read in the...","description":"An issue was discovered in JerryScript 1.0. There is a heap-based buffer over-read in the lit_read_code_unit_from_hex function in lit/lit-char-helpers.c via a RegExp(\"[\\x0\"); payload.","status":"published","published":"2022-05-13T01:44:36Z","modified":"2023-02-02T05:01:05Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:51:06.494699Z"}],"nvd":[{"id":"CVE-2017-18212","description":"An issue was discovered in JerryScript 1.0. There is a heap-based buffer over-read in the lit_read_code_unit_from_hex function in lit/lit-char-helpers.c via a RegExp(\"[\\x0\"); payload.","status":"published","published":"2018-03-01T22:29:00.297Z","modified":"2026-06-17T01:12:24.39Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:04:15.877386Z"}],"osv":[{"id":"CVE-2017-18212","description":"An issue was discovered in JerryScript 1.0. There is a heap-based buffer over-read in the lit_read_code_unit_from_hex function in lit/lit-char-helpers.c via a RegExp(\"[\\x0\"); payload.","status":"published","published":"2018-03-01T22:29:00.297Z","modified":"2026-10-20T10:49:50.89641385Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:05.486486Z"},{"id":"UBUNTU-CVE-2017-18212","description":"An issue was discovered in JerryScript 1.0. There is a heap-based buffer over-read in the lit_read_code_unit_from_hex function in lit/lit-char-helpers.c via a RegExp(\"[\\x0\"); payload.","status":"published","published":"2018-03-01T22:29:00Z","modified":"2026-04-22T11:21:20.332863Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:14.977781Z"}]}}