{"id":"CVE-2020-25462","aliases":["EUVD-2020-18148","GHSA-7w6c-5ppj-58vf"],"status":"published","title":"Heap buffer overflow in the fxCheckArrowFunction function at moddable/xs/sources/xsSyntaxical.c...","description":"Heap buffer overflow in the fxCheckArrowFunction function at moddable/xs/sources/xsSyntaxical.c:3562 in Moddable SDK before OS200903.","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":0.01958,"percentile":0.80463,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2020-12-04T16:58:08Z","modified":"2026-10-20T13:57:27Z","products":[{"vendor":"moddable","product":"moddable"}],"references":[{"url":"https://github.com/Moddable-OpenSource/moddable/issues/432","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://github.com/Moddable-OpenSource/moddable/releases/tag/OS200903","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25462"},{"url":"https://github.com/advisories/GHSA-7w6c-5ppj-58vf"}],"sources":{"cve":[{"id":"CVE-2020-25462","description":"Heap buffer overflow in the fxCheckArrowFunction function at moddable/xs/sources/xsSyntaxical.c:3562 in Moddable SDK before OS200903.","status":"published","published":"2020-12-04T16:58:08Z","modified":"2024-08-04T15:33:05.663Z","updated_at":"2026-11-02T14:35:48.52216Z"}],"euvd":[{"id":"EUVD-2020-18148","description":"Heap buffer overflow in the fxCheckArrowFunction function at moddable/xs/sources/xsSyntaxical.c:3562 in Moddable SDK before OS200903.","status":"published","published":"2020-12-04T16:58:08Z","modified":"2024-08-04T15:33:05Z","updated_at":"2026-11-03T03:07:17.764085Z"}],"ghsa":[{"id":"GHSA-7w6c-5ppj-58vf","title":"Heap buffer overflow in the fxCheckArrowFunction function at moddable/xs/sources/xsSyntaxical.c...","description":"Heap buffer overflow in the fxCheckArrowFunction function at moddable/xs/sources/xsSyntaxical.c:3562 in Moddable SDK before OS200903.","status":"published","published":"2022-05-24T17:35:23Z","modified":"2023-01-29T05:04:36Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:45:36.114986Z"}],"nvd":[{"id":"CVE-2020-25462","description":"Heap buffer overflow in the fxCheckArrowFunction function at moddable/xs/sources/xsSyntaxical.c:3562 in Moddable SDK before OS200903.","status":"published","published":"2020-12-04T17:15:12.493Z","modified":"2026-06-17T03:06:49.75Z","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-787"],"updated_at":"2026-11-02T14:06:27.10541Z"}],"osv":[{"id":"CVE-2020-25462","description":"Heap buffer overflow in the fxCheckArrowFunction function at moddable/xs/sources/xsSyntaxical.c:3562 in Moddable SDK before OS200903.","status":"published","published":"2020-12-04T17:15:12.493Z","modified":"2026-10-20T13:57:27.197709905Z","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":"2026-11-02T15:44:15.879068Z"}]}}