{"id":"CVE-2020-9999","aliases":["EUVD-2020-30778"],"status":"published","description":"A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1, iTunes for Windows 12.10.9. Processing a maliciously crafted text file may lead to arbitrary code execution.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.07957,"percentile":0.94781,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2020-12-08T19:32:03Z","modified":"2026-06-17T03:28:57Z","products":[{"vendor":"apple","product":"icloud"},{"vendor":"apple","product":"ipados"},{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"itunes"},{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"macos"},{"vendor":"apple","product":"tvos"},{"vendor":"apple","product":"watchos"}],"references":[{"url":"https://support.apple.com/kb/HT211843","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT211850","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT211844","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT211935","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT211931","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT211952","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"http://seclists.org/fulldisclosure/2020/Dec/32","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","Mailing List","Third Party Advisory"]}],"sources":{"cve":[{"id":"CVE-2020-9999","description":"A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1, iTunes for Windows 12.10.9. Processing a maliciously crafted text file may lead to arbitrary code execution.","status":"published","published":"2020-12-08T19:32:03Z","modified":"2024-08-04T10:50:57.249Z","updated_at":"2026-11-02T14:35:49.538427Z"}],"euvd":[{"id":"EUVD-2020-30778","description":"A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1, iTunes for Windows 12.10.9. Processing a maliciously crafted text file may lead to arbitrary code execution.","status":"published","published":"2020-12-08T19:32:03Z","modified":"2024-08-04T10:50:57Z","updated_at":"2026-11-03T03:07:50.893254Z"}],"nvd":[{"id":"CVE-2020-9999","description":"A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1, iTunes for Windows 12.10.9. Processing a maliciously crafted text file may lead to arbitrary code execution.","status":"published","published":"2020-12-08T20:15:18.357Z","modified":"2026-06-17T03:28:57.113Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:27.10541Z"}]}}