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.
Published 2021-05-13 12:15:08
Updated 2021-05-25 14:49:38
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-26311

Probability of exploitation activity in the next 30 days: 0.09%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 39 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-26311

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
9.0
HIGH AV:N/AC:L/Au:S/C:C/I:C/A:C
8.0
10.0
NIST
7.2
HIGH CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
1.2
5.9
NIST

CWE ids for CVE-2021-26311

References for CVE-2021-26311

Products affected by CVE-2021-26311

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