{"cve":"CVE-2020-25021","nvd":{"published":"2020-09-04T04:15:12.140","modified":"2026-06-17T03:06:15.297","status":"Modified","description":"An issue was discovered in Noise-Java through 2020-08-27. ChaChaPolyCipherState.encryptWithAd() allows out-of-bounds access.","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-125","CWE-787"],"references":["http://packetstormsecurity.com/files/159057/Noise-Java-ChaChaPolyCipherState.encryptWithAd-Insufficient-Boundary-Checks.html","http://seclists.org/fulldisclosure/2020/Sep/14","https://github.com/rweather/noise-java/commit/18e86b6f8bea7326934109aa9ffa705ebf4bde90","https://github.com/rweather/noise-java/pull/12","http://packetstormsecurity.com/files/159057/Noise-Java-ChaChaPolyCipherState.encryptWithAd-Insufficient-Boundary-Checks.html"],"products":["noise-java_project:noise-java"],"source":"nvd","synced_at":"2026-10-19T21:09:20.498348299+00:00"},"epss":{"cve":"CVE-2020-25021","score":0.02553,"percentile":0.85052,"date":"2026-11-01"},"kev":null,"osv":[],"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."]}