{"id":"CVE-2021-1837","aliases":["EUVD-2021-7301","GHSA-75hp-fjj5-wjf4"],"status":"published","title":"A certificate validation issue was addressed. This issue is fixed in iOS 14.5 and iPadOS 14.5. An...","description":"A certificate validation issue was addressed. This issue is fixed in iOS 14.5 and iPadOS 14.5. An attacker in a privileged network position may be able to alter network traffic.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00494,"percentile":0.4291,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2021-09-08T14:44:06Z","modified":"2026-06-17T03:32:38Z","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-2021-1837"},{"url":"https://github.com/advisories/GHSA-75hp-fjj5-wjf4"}],"sources":{"cve":[{"id":"CVE-2021-1837","description":"A certificate validation issue was addressed. This issue is fixed in iOS 14.5 and iPadOS 14.5. An attacker in a privileged network position may be able to alter network traffic.","status":"published","published":"2021-09-08T14:44:06Z","modified":"2024-08-03T16:25:05.836Z","updated_at":"2026-11-02T14:33:08.409321Z"}],"euvd":[{"id":"EUVD-2021-7301","description":"A certificate validation issue was addressed. This issue is fixed in iOS 14.5 and iPadOS 14.5. An attacker in a privileged network position may be able to alter network traffic.","status":"published","published":"2021-09-08T14:44:06Z","modified":"2024-08-03T16:25:05Z","updated_at":"2026-11-03T03:25:14.678157Z"}],"ghsa":[{"id":"GHSA-75hp-fjj5-wjf4","title":"A certificate validation issue was addressed. This issue is fixed in iOS 14.5 and iPadOS 14.5. An...","description":"A certificate validation issue was addressed. This issue is fixed in iOS 14.5 and iPadOS 14.5. An attacker in a privileged network position may be able to alter network traffic.","status":"published","published":"2022-05-24T19:13:35Z","modified":"2023-01-30T05:02:07Z","cwes":["CWE-295"],"updated_at":"2026-11-02T14:46:33.666288Z"}],"nvd":[{"id":"CVE-2021-1837","description":"A certificate validation issue was addressed. This issue is fixed in iOS 14.5 and iPadOS 14.5. An attacker in a privileged network position may be able to alter network traffic.","status":"published","published":"2021-09-08T15:15:10.703Z","modified":"2026-06-17T03:32:38.683Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:06:58.05696Z"}]}}