{"id":"CVE-2021-42863","aliases":["EUVD-2021-29818","GHSA-8264-28h8-qcwg","UBUNTU-CVE-2021-42863"],"status":"published","title":"A buffer overflow in ecma_builtin_typedarray_prototype_filter() in JerryScript version fe3a5c0...","description":"A buffer overflow in ecma_builtin_typedarray_prototype_filter() in JerryScript version fe3a5c0 allows an attacker to construct a fake object or a fake arraybuffer with unlimited size.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01725,"percentile":0.77733,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2022-05-12T12:33:16Z","modified":"2026-06-17T04:10:13Z","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/4793","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","report"]},{"url":"https://github.com/jerryscript-project/jerryscript/pull/4794","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42863"},{"url":"https://github.com/advisories/GHSA-8264-28h8-qcwg"},{"url":"https://ubuntu.com/security/CVE-2021-42863","tags":["report"]},{"url":"https://github.com/jerryscript-project/jerryscript/commit/4e8d6344a8b5cf8f00bd3d5e869147af06d0189e","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-42863","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-42863","description":"A buffer overflow in ecma_builtin_typedarray_prototype_filter() in JerryScript version fe3a5c0 allows an attacker to construct a fake object or a fake arraybuffer with unlimited size.","status":"published","published":"2022-05-12T12:33:16Z","modified":"2024-08-04T03:38:50.23Z","updated_at":"2026-11-02T14:32:58.739039Z"}],"euvd":[{"id":"EUVD-2021-29818","description":"A buffer overflow in ecma_builtin_typedarray_prototype_filter() in JerryScript version fe3a5c0 allows an attacker to construct a fake object or a fake arraybuffer with unlimited size.","status":"published","published":"2022-05-12T12:33:16Z","modified":"2024-08-04T03:38:50Z","updated_at":"2026-11-03T03:24:15.299027Z"}],"ghsa":[{"id":"GHSA-8264-28h8-qcwg","title":"A buffer overflow in ecma_builtin_typedarray_prototype_filter() in JerryScript version fe3a5c0...","description":"A buffer overflow in ecma_builtin_typedarray_prototype_filter() in JerryScript version fe3a5c0 allows an attacker to construct a fake object or a fake arraybuffer with unlimited size.","status":"published","published":"2022-05-13T00:00:55Z","modified":"2023-02-01T05:02:21Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:49:53.323636Z"}],"nvd":[{"id":"CVE-2021-42863","description":"A buffer overflow in ecma_builtin_typedarray_prototype_filter() in JerryScript version fe3a5c0 allows an attacker to construct a fake object or a fake arraybuffer with unlimited size.","status":"published","published":"2022-05-12T13:15:07.687Z","modified":"2026-06-17T04:10:13.49Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/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-120"],"updated_at":"2026-11-02T14:07:06.029737Z"}],"osv":[{"id":"UBUNTU-CVE-2021-42863","description":"A buffer overflow in ecma_builtin_typedarray_prototype_filter() in JerryScript version fe3a5c0 allows an attacker to construct a fake object or a fake arraybuffer with unlimited size.","status":"published","published":"2022-05-12T13:15:00Z","modified":"2026-04-22T13:02:22.171719Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:29.220315Z"}]}}