{"id":"CVE-2016-7203","aliases":["EUVD-2022-5558","GHSA-wcvc-rhfj-997g"],"status":"published","title":"ChakraCore RCE Vulnerability","description":"The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka \"Scripting Engine Memory Corruption Vulnerability,\" a different vulnerability than CVE-2016-7200, CVE-2016-7201, CVE-2016-7202, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.64892,"percentile":0.99252,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-119"],"published":"2016-11-10T06:16:00Z","modified":"2026-06-17T00:52:46Z","exploits":[{"source":"exploitdb","id":"EDB-40787","title":"Microsoft Edge - 'Array.splice' Heap Overflow","type":"dos","platform":"windows","date":"2016-11-18","verified":true,"url":"https://www.exploit-db.com/exploits/40787"}],"fixes":[{"ecosystem":"NuGet","package":"Microsoft.ChakraCore","fixed_in":["1.2.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"NuGet","package":"Microsoft.ChakraCore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.2"}]}]},{"source":"osv","ecosystem":"NuGet","package":"Microsoft.ChakraCore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.2"}]}],"versions":["1.2.0","1.2.1"]}],"products":[{"vendor":"microsoft","product":"edge"}],"references":[{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-129","tags":["vendor-advisory","x_refsource_MS","x_transferred","web"]},{"url":"https://www.exploit-db.com/exploits/40787/","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"url":"http://www.securityfocus.com/bid/94039","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.securitytracker.com/id/1037245","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-7203","tags":["advisory"]},{"url":"https://github.com/chakra-core/ChakraCore/pull/1982","tags":["web"]},{"url":"https://github.com/chakra-core/ChakraCore/commit/c2787ef8fdb7401922e9ec6540e4e5895d11c631","tags":["web"]},{"url":"https://web.archive.org/web/20210617093311/http://www.securityfocus.com/bid/94039","tags":["web"]},{"url":"https://web.archive.org/web/20211126224744/http://www.securitytracker.com/id/1037245","tags":["web"]},{"url":"https://github.com/advisories/GHSA-wcvc-rhfj-997g"},{"url":"https://github.com/chakra-core/ChakraCore","tags":["package"]},{"url":"https://www.exploit-db.com/exploits/40787","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2016-7203","description":"The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka \"Scripting Engine Memory Corruption Vulnerability,\" a different vulnerability than CVE-2016-7200, CVE-2016-7201, CVE-2016-7202, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.","status":"published","published":"2016-11-10T06:16:00Z","modified":"2024-08-06T01:50:47.595Z","updated_at":"2026-11-02T14:33:36.802481Z"}],"euvd":[{"id":"EUVD-2022-5558","description":"The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka \"Scripting Engine Memory Corruption Vulnerability,\" a different vulnerability than CVE-2016-7200, CVE-2016-7201, CVE-2016-7202, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.","status":"published","published":"2016-11-10T06:16:00Z","modified":"2024-08-06T01:50:47Z","updated_at":"2026-11-03T02:22:33.482405Z"}],"ghsa":[{"id":"GHSA-wcvc-rhfj-997g","title":"ChakraCore RCE Vulnerability","description":"The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka \"Scripting Engine Memory Corruption Vulnerability,\" a different vulnerability than CVE-2016-7200, CVE-2016-7201, CVE-2016-7202, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.","status":"published","published":"2022-05-14T02:22:42Z","modified":"2023-11-01T18:09:36Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:37:11.48574Z"}],"nvd":[{"id":"CVE-2016-7203","description":"The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka \"Scripting Engine Memory Corruption Vulnerability,\" a different vulnerability than CVE-2016-7200, CVE-2016-7201, CVE-2016-7202, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.","status":"published","published":"2016-11-10T06:59:18.967Z","modified":"2026-06-17T00:52:46.92Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/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-119"],"updated_at":"2026-11-02T14:03:32.086916Z"}],"osv":[{"id":"GHSA-wcvc-rhfj-997g","title":"ChakraCore RCE Vulnerability","description":"The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka \"Scripting Engine Memory Corruption Vulnerability,\" a different vulnerability than CVE-2016-7200, CVE-2016-7201, CVE-2016-7202, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.","status":"published","published":"2022-05-14T02:22:42Z","modified":"2024-02-16T08:06:04.644091Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:46:58.401149Z"}]}}