{"id":"CVE-2021-30731","aliases":["EUVD-2021-17648","GHSA-m5jg-j887-v87q"],"status":"published","title":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.4,...","description":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-004 Catalina. An unprivileged application may be able to capture USB devices.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.006,"percentile":0.49209,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2021-09-08T13:42:16Z","modified":"2026-06-17T03:50:46Z","exploits":[{"source":"pocgithub","id":"osy/WebcamViewer","title":"osy/WebcamViewer","date":"2022-04-13","url":"https://github.com/osy/WebcamViewer"}],"products":[{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"macos"}],"references":[{"url":"https://support.apple.com/en-us/HT212600","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212529","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-30731"},{"url":"https://github.com/advisories/GHSA-m5jg-j887-v87q"}],"sources":{"cve":[{"id":"CVE-2021-30731","description":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-004 Catalina. An unprivileged application may be able to capture USB devices.","status":"published","published":"2021-09-08T13:42:16Z","modified":"2024-08-03T22:40:32.149Z","updated_at":"2026-11-02T14:33:02.20241Z"}],"euvd":[{"id":"EUVD-2021-17648","description":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-004 Catalina. An unprivileged application may be able to capture USB devices.","status":"published","published":"2021-09-08T13:42:16Z","modified":"2024-08-03T22:40:32Z","updated_at":"2026-11-03T03:24:41.017854Z"}],"ghsa":[{"id":"GHSA-m5jg-j887-v87q","title":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.4,...","description":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-004 Catalina. An unprivileged application may be able to capture USB devices.","status":"published","published":"2022-05-24T19:13:49Z","modified":"2023-01-30T05:02:07Z","updated_at":"2026-11-02T14:46:34.16886Z"}],"nvd":[{"id":"CVE-2021-30731","description":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-004 Catalina. An unprivileged application may be able to capture USB devices.","status":"published","published":"2021-09-08T14:15:09.083Z","modified":"2026-06-17T03:50:46.737Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":1.9,"vector":"AV:L/AC:M/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:06:58.05696Z"}]}}