{"id":"CVE-2020-9921","aliases":["EUVD-2020-30700","GHSA-845m-9j3r-jhfg"],"status":"published","title":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in...","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.6. A malicious application may be able to execute arbitrary code with system privileges.","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00226,"percentile":0.13373,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-367","CWE-787"],"published":"2020-10-22T18:04:49Z","modified":"2026-06-17T03:28:48Z","products":[{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"macos"}],"references":[{"url":"https://support.apple.com/kb/HT211289","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-9921"},{"url":"https://github.com/advisories/GHSA-845m-9j3r-jhfg"}],"sources":{"cve":[{"id":"CVE-2020-9921","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.6. A malicious application may be able to execute arbitrary code with system privileges.","status":"published","published":"2020-10-22T18:04:49Z","modified":"2024-08-04T10:43:05.472Z","updated_at":"2026-11-02T14:35:49.538427Z"}],"euvd":[{"id":"EUVD-2020-30700","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.6. A malicious application may be able to execute arbitrary code with system privileges.","status":"published","published":"2020-10-22T18:04:49Z","modified":"2024-08-04T10:43:05Z","updated_at":"2026-11-03T03:07:51.994742Z"}],"ghsa":[{"id":"GHSA-845m-9j3r-jhfg","title":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in...","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.6. A malicious application may be able to execute arbitrary code with system privileges.","status":"published","published":"2022-05-24T17:32:08Z","modified":"2023-01-29T05:04:28Z","cwes":["CWE-367"],"updated_at":"2026-11-02T14:45:33.67375Z"}],"nvd":[{"id":"CVE-2020-9921","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.6. A malicious application may be able to execute arbitrary code with system privileges.","status":"published","published":"2020-10-22T19:15:14.777Z","modified":"2026-06-17T03:28:48.637Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.9,"vector":"AV:L/AC:M/Au:N/C:C/I:C/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-367","CWE-787"],"updated_at":"2026-11-02T14:06:20.704992Z"}]}}