{"id":"CVE-2020-1913","details":"An Integer signedness error in the JavaScript Interpreter in Facebook Hermes prior to commit 2c7af7ec481ceffd0d14ce2d7c045e475fd71dc6 allows attackers to cause a denial of service attack or a potential RCE via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.","aliases":["GHSA-gmpm-xp43-f7g6"],"modified":"2026-04-11T16:25:25.612154Z","published":"2020-09-09T19:15:21.007Z","references":[{"type":"ADVISORY","url":"https://www.facebook.com/security/advisories/cve-2020-1913"},{"type":"FIX","url":"https://github.com/facebook/hermes/commit/2c7af7ec481ceffd0d14ce2d7c045e475fd71dc6"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/facebook/hermes","events":[{"introduced":"0"},{"last_affected":"c5418d45dcd384e288aecb9db5e67c66cd3267ee"},{"fixed":"2c7af7ec481ceffd0d14ce2d7c045e475fd71dc6"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"0.4.3"}]}}],"versions":["v0.1.0","v0.1.1","v0.2.1","v0.3.0","v0.4.0","v0.4.1","v0.4.3","v0.5.0","v0.6.0"],"database_specific":{"vanir_signatures":[{"target":{"file":"lib/VM/Interpreter.cpp"},"source":"https://github.com/facebook/hermes/commit/2c7af7ec481ceffd0d14ce2d7c045e475fd71dc6","id":"CVE-2020-1913-2a7576a5","signature_version":"v1","signature_type":"Line","deprecated":false,"digest":{"threshold":0.9,"line_hashes":["269855236786415552897600691540973001776","177911722898958163395498130285053245701","323305219191426086056088233757066307798","39448789090986036212948688995972952205","157409732076311284422209343788055103811"]}}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-1913.json","vanir_signatures_modified":"2026-04-11T16:25:25Z"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}