{"id":"CVE-2020-13991","aliases":["EUVD-2020-6161","GHSA-qc8m-fmhj-x4j4","UBUNTU-CVE-2020-13991"],"status":"published","title":"vm/opcodes.c in JerryScript 2.2.0 allows attackers to hijack the flow of control by controlling a...","description":"vm/opcodes.c in JerryScript 2.2.0 allows attackers to hijack the flow of control by controlling a register.","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":"2026-11-11","score":0.02445,"percentile":0.84549,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2020-09-24T22:13:16Z","modified":"2026-10-20T10:51:48Z","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/pull/3867","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","fix","report"]},{"url":"https://github.com/jerryscript-project/jerryscript/issues/3860","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","report"]},{"url":"https://github.com/jerryscript-project/jerryscript/issues/3859","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","report"]},{"url":"https://github.com/jerryscript-project/jerryscript/issues/3858","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","report"]},{"url":"https://github.com/googleprojectzero/fuzzilli#JerryScript","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-13991"},{"url":"https://github.com/advisories/GHSA-qc8m-fmhj-x4j4"},{"url":"https://ubuntu.com/security/CVE-2020-13991","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-13991","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-13991","description":"vm/opcodes.c in JerryScript 2.2.0 allows attackers to hijack the flow of control by controlling a register.","status":"published","published":"2020-09-24T22:13:16Z","modified":"2024-08-04T12:32:14.651Z","updated_at":"2026-11-02T14:35:53.868619Z"}],"euvd":[{"id":"EUVD-2020-6161","description":"vm/opcodes.c in JerryScript 2.2.0 allows attackers to hijack the flow of control by controlling a register.","status":"published","published":"2020-09-24T22:13:16Z","modified":"2024-08-04T12:32:14Z","updated_at":"2026-11-03T03:07:35.697348Z"}],"ghsa":[{"id":"GHSA-qc8m-fmhj-x4j4","title":"vm/opcodes.c in JerryScript 2.2.0 allows attackers to hijack the flow of control by controlling a...","description":"vm/opcodes.c in JerryScript 2.2.0 allows attackers to hijack the flow of control by controlling a register.","status":"published","published":"2022-05-24T17:29:33Z","modified":"2023-01-29T05:04:41Z","updated_at":"2026-11-02T14:45:36.996717Z"}],"nvd":[{"id":"CVE-2020-13991","description":"vm/opcodes.c in JerryScript 2.2.0 allows attackers to hijack the flow of control by controlling a register.","status":"published","published":"2020-09-24T23:15:13.54Z","modified":"2026-06-17T02:54:03.633Z","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"}],"updated_at":"2026-11-02T14:06:17.70091Z"}],"osv":[{"id":"CVE-2020-13991","description":"vm/opcodes.c in JerryScript 2.2.0 allows attackers to hijack the flow of control by controlling a register.","status":"published","published":"2020-09-24T23:15:13.54Z","modified":"2026-10-20T10:51:48.798725322Z","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":"2026-11-02T15:44:14.418339Z"},{"id":"UBUNTU-CVE-2020-13991","description":"vm/opcodes.c in JerryScript 2.2.0 allows attackers to hijack the flow of control by controlling a register.","status":"published","published":"2020-09-24T23:15:00Z","modified":"2026-04-22T12:29:51.302879Z","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":"2026-11-02T15:54:22.804634Z"}]}}