{"id":"CVE-2020-10565","aliases":["EUVD-2020-3017","GHSA-2x5v-f8wh-jpf6"],"status":"published","title":"grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, does not validate the...","description":"grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, does not validate the address provided as part of a memrw command (read_* or write_*) by a guest through a grub2.cfg file. This allows an untrusted guest to perform arbitrary read or write operations in the context of the grub-bhyve process, resulting in code execution as root on the host OS.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.0041,"percentile":0.35618,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-269"],"published":"2020-03-14T00:53:02Z","modified":"2026-06-17T02:48:00Z","products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"https://svnweb.freebsd.org/ports?view=revision\u0026revision=525916","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-10565"},{"url":"https://github.com/advisories/GHSA-2x5v-f8wh-jpf6"}],"sources":{"cve":[{"id":"CVE-2020-10565","description":"grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, does not validate the address provided as part of a memrw command (read_* or write_*) by a guest through a grub2.cfg file. This allows an untrusted guest to perform arbitrary read or write operations in the context of the grub-bhyve process, resulting in code execution as root on the host OS.","status":"published","published":"2020-03-14T00:53:02Z","modified":"2024-08-04T11:06:09.897Z","updated_at":"2026-11-02T14:35:48.213211Z"}],"euvd":[{"id":"EUVD-2020-3017","description":"grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, does not validate the address provided as part of a memrw command (read_* or write_*) by a guest through a grub2.cfg file. This allows an untrusted guest to perform arbitrary read or write operations in the context of the grub-bhyve process, resulting in code execution as root on the host OS.","status":"published","published":"2020-03-14T00:53:02Z","modified":"2024-08-04T11:06:09Z","updated_at":"2026-11-03T03:07:49.909738Z"}],"ghsa":[{"id":"GHSA-2x5v-f8wh-jpf6","title":"grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, does not validate the...","description":"grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, does not validate the address provided as part of a memrw command (read_* or write_*) by a guest through a grub2.cfg file. This allows an untrusted guest to perform arbitrary read or write operations in the context of the grub-bhyve process, resulting in code execution as root on the host OS.","status":"published","published":"2022-05-24T17:11:30Z","modified":"2023-01-29T05:01:48Z","cwes":["CWE-269"],"updated_at":"2026-11-02T14:44:54.907829Z"}],"nvd":[{"id":"CVE-2020-10565","description":"grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, does not validate the address provided as part of a memrw command (read_* or write_*) by a guest through a grub2.cfg file. This allows an untrusted guest to perform arbitrary read or write operations in the context of the grub-bhyve process, resulting in code execution as root on the host OS.","status":"published","published":"2020-03-14T01:15:12.487Z","modified":"2026-06-17T02:48:00.75Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:05:55.32877Z"}]}}