{"id":"CVE-2021-43413","aliases":["EUVD-2021-30348","GHSA-4gqc-53g7-25x6"],"status":"published","title":"An issue was discovered in GNU Hurd before 0.9 20210404-9. A single pager port is shared among...","description":"An issue was discovered in GNU Hurd before 0.9 20210404-9. A single pager port is shared among everyone who mmaps a file, allowing anyone to modify any files that they can read. This can be trivially exploited to get full root access.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01973,"percentile":0.80728,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-11-07T17:06:59Z","modified":"2026-06-17T04:10:56Z","products":[{"vendor":"gnu","product":"hurd"}],"references":[{"url":"https://lists.gnu.org/archive/html/bug-hurd/2021-05/msg00079.html","tags":["x_refsource_MISC","x_transferred","Exploit","Mailing List","Vendor Advisory"]},{"url":"https://www.mail-archive.com/bug-hurd%40gnu.org/msg32113.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://lists.gnu.org/archive/html/bug-hurd/2002-11/msg00263.html","tags":["x_refsource_MISC","x_transferred","Mailing List","Vendor Advisory"]},{"url":"https://lists.gnu.org/archive/html/bug-hurd/2005-06/msg00191.html","tags":["x_refsource_MISC","x_transferred","Mailing List","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43413"},{"url":"https://www.mail-archive.com/bug-hurd@gnu.org/msg32113.html"},{"url":"https://github.com/advisories/GHSA-4gqc-53g7-25x6"}],"sources":{"cve":[{"id":"CVE-2021-43413","description":"An issue was discovered in GNU Hurd before 0.9 20210404-9. A single pager port is shared among everyone who mmaps a file, allowing anyone to modify any files that they can read. This can be trivially exploited to get full root access.","status":"published","published":"2021-11-07T17:06:59Z","modified":"2024-08-04T03:55:28.558Z","updated_at":"2026-11-02T14:32:57.033395Z"}],"euvd":[{"id":"EUVD-2021-30348","description":"An issue was discovered in GNU Hurd before 0.9 20210404-9. A single pager port is shared among everyone who mmaps a file, allowing anyone to modify any files that they can read. This can be trivially exploited to get full root access.","status":"published","published":"2021-11-07T17:06:59Z","modified":"2024-08-04T03:55:28Z","updated_at":"2026-11-03T03:24:14.245608Z"}],"ghsa":[{"id":"GHSA-4gqc-53g7-25x6","title":"An issue was discovered in GNU Hurd before 0.9 20210404-9. A single pager port is shared among...","description":"An issue was discovered in GNU Hurd before 0.9 20210404-9. A single pager port is shared among everyone who mmaps a file, allowing anyone to modify any files that they can read. This can be trivially exploited to get full root access.","status":"published","published":"2022-05-24T19:19:55Z","modified":"2023-01-30T05:03:48Z","updated_at":"2026-11-02T14:46:54.738868Z"}],"nvd":[{"id":"CVE-2021-43413","description":"An issue was discovered in GNU Hurd before 0.9 20210404-9. A single pager port is shared among everyone who mmaps a file, allowing anyone to modify any files that they can read. This can be trivially exploited to get full root access.","status":"published","published":"2021-11-07T18:15:07.783Z","modified":"2026-06-17T04:10:56.433Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:07:00.984108Z"}]}}