{"id":"CVE-2020-0823","aliases":["EUVD-2021-1498","GHSA-wvhv-rr3v-vhpj"],"status":"published","title":"Out-of-bounds write in ChakraCore","description":"A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-0768, CVE-2020-0825, CVE-2020-0826, CVE-2020-0827, CVE-2020-0828, CVE-2020-0829, CVE-2020-0830, CVE-2020-0831, CVE-2020-0832, CVE-2020-0833, CVE-2020-0848.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.08854,"percentile":0.9524,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2020-03-12T15:48:29Z","modified":"2026-10-24T10:30:19Z","fixes":[{"ecosystem":"NuGet","package":"Microsoft.ChakraCore","fixed_in":["1.11.17"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"NuGet","package":"Microsoft.ChakraCore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.11.17"}]}]},{"source":"osv","ecosystem":"NuGet","package":"Microsoft.ChakraCore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.11.17"}]}],"versions":["1.10.0","1.10.1","1.10.2","1.11.0","1.11.1","1.11.10","1.11.11","1.11.12","1.11.13","1.11.14","1.11.15","1.11.16","1.11.2","1.11.3","1.11.4","1.11.5","1.11.6","1.11.7","1.11.8","1.11.9","1.2.0","1.2.1","1.2.2","1.2.3","1.2.6.62716-preview","1.3.0","1.3.1","1.3.2","1.4.0","1.4.1","1.4.2","1.4.3","1.4.4","1.4.5","1.5.0","1.5.1","1.5.2","1.5.3","1.6.0","1.6.2","1.7.0","1.7.1","1.7.2","1.7.3","1.7.4","1.7.5","1.7.6","1.8.0","1.8.1","1.8.2","1.8.3","1.8.4","1.8.5"]}],"products":[{"vendor":"microsoft","product":"chakracore"},{"vendor":"microsoft","product":"edge"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1607 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1607 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1709 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1709 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1709 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1803 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1803 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1803 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1809 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1809 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1809 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1903 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1903 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1903 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1909 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1909 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1909 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows server 2016"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows server 2019"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0823","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-0823","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-wvhv-rr3v-vhpj"}],"sources":{"cve":[{"id":"CVE-2020-0823","description":"A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-0768, CVE-2020-0825, CVE-2020-0826, CVE-2020-0827, CVE-2020-0828, CVE-2020-0829, CVE-2020-0830, CVE-2020-0831, CVE-2020-0832, CVE-2020-0833, CVE-2020-0848.","status":"published","published":"2020-03-12T15:48:29Z","modified":"2024-08-04T06:18:03.159Z","updated_at":"2026-11-02T14:35:59.763887Z"}],"euvd":[{"id":"EUVD-2021-1498","description":"A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-0768, CVE-2020-0825, CVE-2020-0826, CVE-2020-0827, CVE-2020-0828, CVE-2020-0829, CVE-2020-0830, CVE-2020-0831, CVE-2020-0832, CVE-2020-0833, CVE-2020-0848.","status":"published","published":"2020-03-12T15:48:29Z","modified":"2024-08-04T06:18:03Z","updated_at":"2026-11-03T03:08:16.431929Z"}],"ghsa":[{"id":"GHSA-wvhv-rr3v-vhpj","title":"Out-of-bounds write in ChakraCore","description":"A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-0768, CVE-2020-0825, CVE-2020-0826, CVE-2020-0827, CVE-2020-0828, CVE-2020-0829, CVE-2020-0830, CVE-2020-0831, CVE-2020-0832, CVE-2020-0833, CVE-2020-0848.","status":"published","published":"2021-07-28T18:57:11Z","modified":"2023-02-01T05:05:54Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:36:36.66596Z"}],"nvd":[{"id":"CVE-2020-0823","description":"A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-0768, CVE-2020-0825, CVE-2020-0826, CVE-2020-0827, CVE-2020-0828, CVE-2020-0829, CVE-2020-0830, CVE-2020-0831, CVE-2020-0832, CVE-2020-0833, CVE-2020-0848.","status":"published","published":"2020-03-12T16:15:17.157Z","modified":"2026-06-17T02:46:41.663Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.6,"vector":"AV:N/AC:H/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:05:55.32877Z"}],"osv":[{"id":"CVE-2020-0823","description":"A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-0768, CVE-2020-0825, CVE-2020-0826, CVE-2020-0827, CVE-2020-0828, CVE-2020-0829, CVE-2020-0830, CVE-2020-0831, CVE-2020-0832, CVE-2020-0833, CVE-2020-0848.","status":"published","published":"2020-03-12T16:15:17.157Z","modified":"2026-10-24T10:30:19.993331677Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:13.492058Z"},{"id":"GHSA-wvhv-rr3v-vhpj","title":"Out-of-bounds write in ChakraCore","description":"A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-0768, CVE-2020-0825, CVE-2020-0826, CVE-2020-0827, CVE-2020-0828, CVE-2020-0829, CVE-2020-0830, CVE-2020-0831, CVE-2020-0832, CVE-2020-0833, CVE-2020-0848.","status":"published","published":"2021-07-28T18:57:11Z","modified":"2023-11-08T04:01:55.313039Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:46:59.131095Z"}]}}