{"id":"CVE-2021-1877","aliases":["EUVD-2021-7341","GHSA-74p7-386w-jw56"],"status":"published","title":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14...","description":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.5 and iPadOS 14.5. A local user may be able to read kernel memory.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00277,"percentile":0.20332,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2021-09-08T14:48:54Z","modified":"2026-06-17T03:32:42Z","products":[{"vendor":"apple","product":"ios and ipados"},{"vendor":"apple","product":"ipados"},{"vendor":"apple","product":"iphone_os"}],"references":[{"url":"https://support.apple.com/en-us/HT212317","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-1877"},{"url":"https://github.com/advisories/GHSA-74p7-386w-jw56"}],"sources":{"cve":[{"id":"CVE-2021-1877","description":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.5 and iPadOS 14.5. A local user may be able to read kernel memory.","status":"published","published":"2021-09-08T14:48:54Z","modified":"2024-08-03T16:25:06.355Z","updated_at":"2026-11-02T14:33:08.409321Z"}],"euvd":[{"id":"EUVD-2021-7341","description":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.5 and iPadOS 14.5. A local user may be able to read kernel memory.","status":"published","published":"2021-09-08T14:48:54Z","modified":"2024-08-03T16:25:06Z","updated_at":"2026-11-03T03:25:14.678157Z"}],"ghsa":[{"id":"GHSA-74p7-386w-jw56","title":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14...","description":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.5 and iPadOS 14.5. A local user may be able to read kernel memory.","status":"published","published":"2022-05-24T19:13:32Z","modified":"2023-01-30T05:01:56Z","cwes":["CWE-125"],"updated_at":"2026-11-02T14:46:31.204916Z"}],"nvd":[{"id":"CVE-2021-1877","description":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.5 and iPadOS 14.5. A local user may be able to read kernel memory.","status":"published","published":"2021-09-08T15:15:12.257Z","modified":"2026-06-17T03:32:42.567Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:C/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:06:58.05696Z"}]}}