{"id":"CVE-2020-17131","aliases":["GHSA-qwwg-gc55-qqrv"],"url":"https://o3.security/vulnerability/CVE-2020-17131","summary":"Out-of-bounds Write in Chakra","details":"Chakra Scripting Engine Memory Corruption Vulnerability","published":"2020-12-10T00:15:15.323Z","modified":"2026-08-27T08:13:57.184924Z","cvss":{"score":4.2,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N"},"epss":{"score":0.01753,"percentile":0.75966,"asOf":"2026-08-28"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"NuGet","name":"Microsoft.ChakraCore","fixedVersion":"1.11.24"}],"fix":{"url":"https://github.com/chakra-core/ChakraCore/pull/6531","label":"chakra-core/ChakraCore#6531"},"references":[{"type":"WEB","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17131"},{"type":"FIX","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17131"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-17131"},{"type":"WEB","url":"https://github.com/chakra-core/ChakraCore/pull/6531"},{"type":"WEB","url":"https://github.com/chakra-core/ChakraCore/wiki/Roadmap#v11124"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T08:13:57.184924Z"}}