{"cve":"CVE-2020-28498","nvd":{"published":"2021-02-02T19:15:13.720","modified":"2026-06-17T03:10:32.537","status":"Modified","description":"The package elliptic before 6.5.4 are vulnerable to Cryptographic Issues via the secp256k1 implementation in elliptic/ec/key.js. There is no check to confirm that the public key point passed into the derive function actually exists on the secp256k1 curve. This results in the potential for the private key used in this implementation to be revealed after a number of ECDH operations are performed.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","score":6.8},"cwes":["CWE-327"],"references":["https://github.com/christianlundkvist/blog/blob/master/2020_05_26_secp256k1_twist_attacks/secp256k1_twist_attacks.md","https://github.com/indutny/elliptic/commit/441b7428b0e8f6636c42118ad2aaa186d3c34c3f","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1069836","https://snyk.io/vuln/SNYK-JS-ELLIPTIC-1064899","https://github.com/christianlundkvist/blog/blob/master/2020_05_26_secp256k1_twist_attacks/secp256k1_twist_attacks.md"],"products":["indutny:elliptic"],"source":"nvd","synced_at":"2026-10-19T21:14:10.479542811+00:00"},"epss":{"cve":"CVE-2020-28498","score":0.0125,"percentile":0.69404,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-r9p9-mrjm-926w","url":"https://osv.dev/vulnerability/GHSA-r9p9-mrjm-926w","summary":"Elliptic Uses a Broken or Risky Cryptographic Algorithm","modified":"2025-01-14T08:57:29.466454Z","packages":[{"ecosystem":"npm","name":"elliptic","purl":"pkg:npm/elliptic","ranges":["<6.5.4"],"fixed":["6.5.4"]}]}],"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."]}