{"id":"CVE-2026-69438","aliases":["EUVD-2026-73496","GHSA-g585-c42c-qwvp"],"status":"published","title":"Microsoft JScript Remote Code Execution Vulnerability","description":"Incorrect conversion between numeric types in Microsoft JScript allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00707,"percentile":0.53713,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-681"],"published":"2026-09-08T17:15:32Z","modified":"2026-10-31T16:14:12Z","products":[{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 23h2"},{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows 11 version 25h2"},{"vendor":"microsoft","product":"windows 11 version 26h1"},{"vendor":"microsoft","product":"windows server 2012"},{"vendor":"microsoft","product":"windows server 2012 (server core installation)"},{"vendor":"microsoft","product":"windows server 2012 r2"},{"vendor":"microsoft","product":"windows server 2012 r2 (server core installation)"},{"vendor":"microsoft","product":"windows server 2016"},{"vendor":"microsoft","product":"windows server 2016 (server core installation)"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_10_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_23h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2012"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69438","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69438"},{"url":"https://github.com/advisories/GHSA-g585-c42c-qwvp"}],"sources":{"cve":[{"id":"CVE-2026-69438","title":"Microsoft JScript Remote Code Execution Vulnerability","description":"Incorrect conversion between numeric types in Microsoft JScript allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:15:32.761Z","modified":"2026-10-31T16:14:12.942Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-681"],"updated_at":"2026-11-02T13:50:16.178634Z"}],"euvd":[{"id":"EUVD-2026-73496","description":"Incorrect conversion between numeric types in Microsoft JScript allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:15:32Z","modified":"2026-10-31T16:14:12Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T16:58:58.237178Z"}],"ghsa":[{"id":"GHSA-g585-c42c-qwvp","title":"Incorrect conversion between numeric types in Microsoft JScript allows an unauthorized attacker...","description":"Incorrect conversion between numeric types in Microsoft JScript allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:32:35Z","modified":"2026-09-08T18:32:43Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-681"],"updated_at":"2026-11-02T15:11:31.116638Z"}],"nvd":[{"id":"CVE-2026-69438","description":"Incorrect conversion between numeric types in Microsoft JScript allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:19:07.777Z","modified":"2026-09-29T14:47:43.123Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-681"],"updated_at":"2026-11-02T14:12:44.840742Z"}]}}