{"id":"CVE-2019-8839","aliases":["EUVD-2019-18229","GHSA-gx3r-m27w-v3g4"],"status":"published","title":"A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS...","description":"A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra. An attacker in a privileged position may be able to perform a denial of service attack.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00709,"percentile":0.5382,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2020-10-27T19:55:20Z","modified":"2026-06-17T02:42:42Z","products":[{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"macos"}],"references":[{"url":"https://support.apple.com/en-us/HT210788","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-8839"},{"url":"https://github.com/advisories/GHSA-gx3r-m27w-v3g4"}],"sources":{"cve":[{"id":"CVE-2019-8839","description":"A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra. An attacker in a privileged position may be able to perform a denial of service attack.","status":"published","published":"2020-10-27T19:55:20Z","modified":"2024-08-04T21:31:37.299Z","updated_at":"2026-11-02T14:20:22.019351Z"}],"euvd":[{"id":"EUVD-2019-18229","description":"A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra. An attacker in a privileged position may be able to perform a denial of service attack.","status":"published","published":"2020-10-27T19:55:20Z","modified":"2024-08-04T21:31:37Z","updated_at":"2026-11-03T03:06:40.999783Z"}],"ghsa":[{"id":"GHSA-gx3r-m27w-v3g4","title":"A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS...","description":"A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra. An attacker in a privileged position may be able to perform a denial of service attack.","status":"published","published":"2022-05-24T17:32:26Z","modified":"2023-01-29T05:04:34Z","cwes":["CWE-120"],"updated_at":"2026-11-02T14:45:35.161944Z"}],"nvd":[{"id":"CVE-2019-8839","description":"A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra. An attacker in a privileged position may be able to perform a denial of service attack.","status":"published","published":"2020-10-27T20:15:20.957Z","modified":"2026-06-17T02:42:42.613Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:05:48.502374Z"}]}}