{"id":"CVE-2020-3847","aliases":["EUVD-2020-25112","GHSA-g87c-v886-hqf3"],"status":"published","title":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS...","description":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker may be able to leak memory.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.02659,"percentile":0.85814,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125","CWE-20"],"published":"2020-04-01T18:09:13Z","modified":"2026-06-17T03:19:08Z","products":[{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"macos"}],"references":[{"url":"https://support.apple.com/HT210919","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-3847"},{"url":"https://github.com/advisories/GHSA-g87c-v886-hqf3"}],"sources":{"cve":[{"id":"CVE-2020-3847","description":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker may be able to leak memory.","status":"published","published":"2020-04-01T18:09:13Z","modified":"2024-08-04T07:44:51.218Z","updated_at":"2026-11-02T14:35:52.268457Z"}],"euvd":[{"id":"EUVD-2020-25112","description":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker may be able to leak memory.","status":"published","published":"2020-04-01T18:09:13Z","modified":"2024-08-04T07:44:51Z","updated_at":"2026-11-03T03:08:08.894885Z"}],"ghsa":[{"id":"GHSA-g87c-v886-hqf3","title":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS...","description":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker may be able to leak memory.","status":"published","published":"2022-05-24T17:13:05Z","modified":"2023-01-29T05:02:06Z","cwes":["CWE-125"],"updated_at":"2026-11-02T14:44:59.63481Z"}],"nvd":[{"id":"CVE-2020-3847","description":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker may be able to leak memory.","status":"published","published":"2020-04-01T19:15:14.657Z","modified":"2026-06-17T03:19:08.21Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-20","CWE-125"],"updated_at":"2026-11-02T14:05:57.678762Z"}]}}