{"id":"CVE-2020-15687","aliases":["EUVD-2020-7674","GHSA-24gg-6vq3-mg4f"],"status":"published","title":"Missing access control restrictions in the Hypervisor component of the ACRN Project (v2.0 and v1...","description":"Missing access control restrictions in the Hypervisor component of the ACRN Project (v2.0 and v1.6.1) allow a malicious entity, with root access in the Service VM userspace, to abuse the PCIe assign/de-assign Hypercalls via crafted ioctls and payloads. This attack results in a corrupt state and Denial of Service (DoS) for previously assigned PCIe devices to the Service VM at runtime.","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":0.01684,"percentile":0.77293,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2020-08-31T15:39:24Z","modified":"2026-06-17T02:57:03Z","products":[{"vendor":"linuxfoundation","product":"acrn"}],"references":[{"url":"https://projectacrn.github.io/latest/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://projectacrn.github.io/latest/developer-guides/hld/split-dm.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://projectacrn.github.io/2.1/asa.html#addressed-in-acrn-v2-1","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15687"},{"url":"https://github.com/advisories/GHSA-24gg-6vq3-mg4f"}],"sources":{"cve":[{"id":"CVE-2020-15687","description":"Missing access control restrictions in the Hypervisor component of the ACRN Project (v2.0 and v1.6.1) allow a malicious entity, with root access in the Service VM userspace, to abuse the PCIe assign/de-assign Hypercalls via crafted ioctls and payloads. This attack results in a corrupt state and Denial of Service (DoS) for previously assigned PCIe devices to the Service VM at runtime.","status":"published","published":"2020-08-31T15:39:24Z","modified":"2024-08-04T13:22:30.722Z","updated_at":"2026-11-02T14:35:49.879248Z"}],"euvd":[{"id":"EUVD-2020-7674","description":"Missing access control restrictions in the Hypervisor component of the ACRN Project (v2.0 and v1.6.1) allow a malicious entity, with root access in the Service VM userspace, to abuse the PCIe assign/de-assign Hypercalls via crafted ioctls and payloads. This attack results in a corrupt state and Denial of Service (DoS) for previously assigned PCIe devices to the Service VM at runtime.","status":"published","published":"2020-08-31T15:39:24Z","modified":"2024-08-04T13:22:30Z","updated_at":"2026-11-03T03:07:30.36726Z"}],"ghsa":[{"id":"GHSA-24gg-6vq3-mg4f","title":"Missing access control restrictions in the Hypervisor component of the ACRN Project (v2.0 and v1...","description":"Missing access control restrictions in the Hypervisor component of the ACRN Project (v2.0 and v1.6.1) allow a malicious entity, with root access in the Service VM userspace, to abuse the PCIe assign/de-assign Hypercalls via crafted ioctls and payloads. This attack results in a corrupt state and Denial of Service (DoS) for previously assigned PCIe devices to the Service VM at runtime.","status":"published","published":"2022-05-24T17:26:59Z","modified":"2023-01-29T05:04:19Z","updated_at":"2026-11-02T14:45:31.23097Z"}],"nvd":[{"id":"CVE-2020-15687","description":"Missing access control restrictions in the Hypervisor component of the ACRN Project (v2.0 and v1.6.1) allow a malicious entity, with root access in the Service VM userspace, to abuse the PCIe assign/de-assign Hypercalls via crafted ioctls and payloads. This attack results in a corrupt state and Denial of Service (DoS) for previously assigned PCIe devices to the Service VM at runtime.","status":"published","published":"2020-08-31T16:15:14.897Z","modified":"2026-06-17T02:57:03.24Z","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":"2026-11-02T14:06:13.600965Z"}]}}