{"cve":"CVE-2020-9493","nvd":{"published":"2021-06-16T08:15:06.577","modified":"2026-10-07T16:17:30.130","status":"Modified","description":"A deserialization flaw was found in Apache Chainsaw versions prior to 2.1.0 which could lead to malicious code execution.","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":["http://www.openwall.com/lists/oss-security/2021/06/16/1","http://www.openwall.com/lists/oss-security/2022/01/18/5","https://lists.apache.org/thread.html/r50d389c613ba6062a26aa57e163c09bfee4ff2d95d67331d75265b83%40%3Cannounce.apache.org%3E","https://www.openwall.com/lists/oss-security/2021/06/16/1","http://www.openwall.com/lists/oss-security/2021/06/16/1"],"products":["apache:chainsaw","apache:log4j","qos:reload4j"],"source":"nvd","synced_at":"2026-10-19T21:20:07.141963181+00:00"},"epss":{"cve":"CVE-2020-9493","score":0.04612,"percentile":0.91615,"date":"2026-10-25"},"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."]}