{"id":"CVE-2021-46170","aliases":["EUVD-2021-32870","GHSA-q7gg-h9mq-mvc3","UBUNTU-CVE-2021-46170"],"status":"published","title":"An issue was discovered in JerryScript commit a6ab5e9. There is an Use-After-Free in...","description":"An issue was discovered in JerryScript commit a6ab5e9. There is an Use-After-Free in lexer_compare_identifier_to_string in js-lexer.c file.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01197,"percentile":0.68336,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2022-01-14T20:05:13Z","modified":"2026-10-20T10:54:13Z","affected":[{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"iotjs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"iotjs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0+715-1ubuntu2"]}],"products":[{"vendor":"jerryscript","product":"jerryscript"}],"references":[{"url":"https://github.com/jerryscript-project/jerryscript/issues/4917","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-46170"},{"url":"https://github.com/advisories/GHSA-q7gg-h9mq-mvc3"},{"url":"https://ubuntu.com/security/CVE-2021-46170","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-46170","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-46170","description":"An issue was discovered in JerryScript commit a6ab5e9. There is an Use-After-Free in lexer_compare_identifier_to_string in js-lexer.c file.","status":"published","published":"2022-01-14T20:05:13Z","modified":"2024-08-04T05:02:11.245Z","updated_at":"2026-11-02T14:33:03.320536Z"}],"euvd":[{"id":"EUVD-2021-32870","description":"An issue was discovered in JerryScript commit a6ab5e9. There is an Use-After-Free in lexer_compare_identifier_to_string in js-lexer.c file.","status":"published","published":"2022-01-14T20:05:13Z","modified":"2024-08-04T05:02:11Z","updated_at":"2026-11-03T03:08:24.142295Z"}],"ghsa":[{"id":"GHSA-q7gg-h9mq-mvc3","title":"An issue was discovered in JerryScript commit a6ab5e9. There is an Use-After-Free in...","description":"An issue was discovered in JerryScript commit a6ab5e9. There is an Use-After-Free in lexer_compare_identifier_to_string in js-lexer.c file.","status":"published","published":"2022-01-15T00:00:47Z","modified":"2023-02-03T05:04:34Z","cwes":["CWE-416"],"updated_at":"2026-11-02T14:53:35.259064Z"}],"nvd":[{"id":"CVE-2021-46170","description":"An issue was discovered in JerryScript commit a6ab5e9. There is an Use-After-Free in lexer_compare_identifier_to_string in js-lexer.c file.","status":"published","published":"2022-01-14T21:15:08.54Z","modified":"2026-06-17T04:14:37.61Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:07:03.821385Z"}],"osv":[{"id":"CVE-2021-46170","description":"An issue was discovered in JerryScript commit a6ab5e9. There is an Use-After-Free in lexer_compare_identifier_to_string in js-lexer.c file.","status":"published","published":"2022-01-14T21:15:08.54Z","modified":"2026-10-20T10:54:13.583178712Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:22.18434Z"},{"id":"UBUNTU-CVE-2021-46170","description":"An issue was discovered in JerryScript commit a6ab5e9. There is an Use-After-Free in lexer_compare_identifier_to_string in js-lexer.c file.","status":"published","published":"2022-01-14T21:15:00Z","modified":"2026-04-22T13:04:57.33117Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:30.277322Z"}]}}