{"id":"CVE-2021-1761","aliases":["EUVD-2021-7225","GHSA-jxf4-w4m5-h6gr"],"status":"published","title":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.2,...","description":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause a denial of service.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.02141,"percentile":0.82286,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-04-02T18:19:13Z","modified":"2026-06-17T03:32:30Z","products":[{"vendor":"apple","product":"ios and ipados"},{"vendor":"apple","product":"ipad_os"},{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"macos"},{"vendor":"apple","product":"tvos"},{"vendor":"apple","product":"watchos"}],"references":[{"url":"https://support.apple.com/en-us/HT212147","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212146","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212148","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212149","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-1761"},{"url":"https://github.com/advisories/GHSA-jxf4-w4m5-h6gr"}],"sources":{"cve":[{"id":"CVE-2021-1761","description":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause a denial of service.","status":"published","published":"2021-04-02T18:19:13Z","modified":"2024-08-03T16:18:11.594Z","updated_at":"2026-11-02T14:33:08.409321Z"}],"euvd":[{"id":"EUVD-2021-7225","description":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause a denial of service.","status":"published","published":"2021-04-02T18:19:13Z","modified":"2024-08-03T16:18:11Z","updated_at":"2026-11-03T03:25:15.150715Z"}],"ghsa":[{"id":"GHSA-jxf4-w4m5-h6gr","title":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.2,...","description":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause a denial of service.","status":"published","published":"2022-05-24T17:46:18Z","modified":"2023-01-29T05:05:50Z","updated_at":"2026-11-02T14:45:53.268312Z"}],"nvd":[{"id":"CVE-2021-1761","description":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause a denial of service.","status":"published","published":"2021-04-02T19:15:18.88Z","modified":"2026-06-17T03:32:30.613Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:51.197859Z"}]}}