{"id":"CVE-2021-26311","aliases":["EUVD-2021-13117","GHSA-2v8q-5wcx-2f5j"],"status":"published","title":"AMD Secure Encrypted Virtualization","description":"In the AMD SEV/SEV-ES feature, memory can be rearranged in the guest address space that is not detected by the attestation mechanism which could be used by a malicious hypervisor to potentially lead to arbitrary code execution within the guest VM if a malicious administrator has access to compromise the server 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Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26311"},{"url":"https://github.com/advisories/GHSA-2v8q-5wcx-2f5j"}],"sources":{"cve":[{"id":"CVE-2021-26311","title":"AMD Secure Encrypted Virtualization","description":"In the AMD SEV/SEV-ES feature, memory can be rearranged in the guest address space that is not detected by the attestation mechanism which could be used by a malicious hypervisor to potentially lead to arbitrary code execution within the guest VM if a malicious administrator has access to compromise the server hypervisor.","status":"published","published":"2021-05-13T11:06:17.662Z","modified":"2024-09-17T04:25:26.352Z","updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13117","description":"In the AMD SEV/SEV-ES feature, memory can be rearranged in the guest address space that is not detected by the attestation mechanism which could be used by a malicious hypervisor to potentially lead to arbitrary code execution within the guest VM if a malicious administrator has access to compromise the server hypervisor.","status":"published","published":"2021-05-13T11:06:17Z","modified":"2024-09-17T04:25:26Z","updated_at":"2026-11-03T00:28:23.116921Z"}],"ghsa":[{"id":"GHSA-2v8q-5wcx-2f5j","title":"In the AMD SEV/SEV-ES feature, memory can be rearranged in the guest address space that is not...","description":"In the AMD SEV/SEV-ES feature, memory can be rearranged in the guest address space that is not detected by the attestation mechanism which could be used by a malicious hypervisor to potentially lead to arbitrary code execution within the guest VM if a malicious administrator has access to compromise the server hypervisor.","status":"published","published":"2022-05-24T19:02:23Z","modified":"2023-01-29T05:06:16Z","cwes":["CWE-77"],"updated_at":"2026-11-02T14:45:59.496932Z"}],"nvd":[{"id":"CVE-2021-26311","description":"In the AMD SEV/SEV-ES feature, memory can be rearranged in the guest address space that is not detected by the attestation mechanism which could be used by a malicious hypervisor to potentially lead to arbitrary code execution within the guest VM if a malicious administrator has access to compromise the server hypervisor.","status":"published","published":"2021-05-13T12:15:07.597Z","modified":"2026-06-17T03:43:05.487Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/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"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:06:53.343329Z"}]}}