{"cve":"CVE-2021-33420","nvd":{"published":"2022-12-15T19:15:15.807","modified":"2026-06-17T03:54:32.483","status":"Modified","description":"A deserialization issue discovered in inikulin replicator before 1.0.4 allows remote attackers to run arbitrary code via the fromSerializable function in TypedArray object.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-502"],"references":["https://advisory.checkmarx.net/advisory/CX-2021-4787","https://github.com/inikulin/replicator/commit/2c626242fb4a118855262c64b5731b2ce98e521b","https://github.com/inikulin/replicator/issues/16","https://github.com/inikulin/replicator/pull/17","https://advisory.checkmarx.net/advisory/CX-2021-4787"],"products":["replicator_project:replicator"],"source":"nvd","synced_at":"2026-10-19T21:37:31.370122805+00:00"},"epss":{"cve":"CVE-2021-33420","score":0.01715,"percentile":0.77411,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hw46-vg6w-88fj","url":"https://osv.dev/vulnerability/GHSA-hw46-vg6w-88fj","summary":"replicator vulnerable to Deserialization of Untrusted Data","modified":"2023-11-08T04:06:04.377707Z","packages":[{"ecosystem":"npm","name":"replicator","purl":"pkg:npm/replicator","ranges":["<1.0.4"],"fixed":["1.0.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}