{"id":"CVE-2021-30830","aliases":["EUVD-2021-17747","GHSA-v2c2-f456-8p3q"],"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 Security Update 2021-005 Catalina, macOS Big Sur 11.6. A malicious application may be able to execute arbitrary code with kernel privileges.","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":"2026-11-10","score":0.0105,"percentile":0.64546,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-10-19T13:11:55Z","modified":"2026-06-17T03:50:58Z","products":[{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"macos"}],"references":[{"url":"https://support.apple.com/en-us/HT212804","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212805","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-30830"},{"url":"https://github.com/advisories/GHSA-v2c2-f456-8p3q"}],"sources":{"cve":[{"id":"CVE-2021-30830","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in Security Update 2021-005 Catalina, macOS Big Sur 11.6. A malicious application may be able to execute arbitrary code with kernel privileges.","status":"published","published":"2021-10-19T13:11:55Z","modified":"2024-08-03T22:48:12.783Z","updated_at":"2026-11-02T14:33:02.20241Z"}],"euvd":[{"id":"EUVD-2021-17747","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in Security Update 2021-005 Catalina, macOS Big Sur 11.6. A malicious application may be able to execute arbitrary code with kernel privileges.","status":"published","published":"2021-10-19T13:11:55Z","modified":"2024-08-03T22:48:12Z","updated_at":"2026-11-03T03:24:40.575187Z"}],"ghsa":[{"id":"GHSA-v2c2-f456-8p3q","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 Security Update 2021-005 Catalina, macOS Big Sur 11.6. A malicious application may be able to execute arbitrary code with kernel privileges.","status":"published","published":"2022-05-24T19:17:59Z","modified":"2023-01-30T05:02:54Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:44.129156Z"}],"nvd":[{"id":"CVE-2021-30830","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in Security Update 2021-005 Catalina, macOS Big Sur 11.6. A malicious application may be able to execute arbitrary code with kernel privileges.","status":"published","published":"2021-10-19T14:15:08.903Z","modified":"2026-06-17T03:50:58.037Z","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":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:00.137719Z"}]}}