Vulnerability Details CVE-2021-26311
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.013
EPSS Ranking 78.7%
CVSS Severity
CVSS v3 Score 7.2
CVSS v2 Score 9.0
References
Products affected by CVE-2021-26311
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cpe:2.3:h:amd:epyc_7232p:-
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cpe:2.3:h:amd:epyc_7251:-
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cpe:2.3:h:amd:epyc_7252:-
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cpe:2.3:h:amd:epyc_7261:-
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cpe:2.3:h:amd:epyc_7262:-
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cpe:2.3:h:amd:epyc_7272:-
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cpe:2.3:h:amd:epyc_7281:-
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cpe:2.3:h:amd:epyc_7282:-
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cpe:2.3:h:amd:epyc_72f3:-
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cpe:2.3:h:amd:epyc_7301:-
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cpe:2.3:h:amd:epyc_7302:-
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cpe:2.3:h:amd:epyc_7302p:-
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cpe:2.3:h:amd:epyc_7313:-
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cpe:2.3:h:amd:epyc_7313p:-
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cpe:2.3:h:amd:epyc_7343:-
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cpe:2.3:h:amd:epyc_7351:-
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cpe:2.3:h:amd:epyc_7351p:-
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cpe:2.3:h:amd:epyc_7352:-
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cpe:2.3:h:amd:epyc_7371:-
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cpe:2.3:h:amd:epyc_73f3:-
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cpe:2.3:h:amd:epyc_7401:-
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cpe:2.3:h:amd:epyc_7401p:-
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cpe:2.3:h:amd:epyc_7402:-
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cpe:2.3:h:amd:epyc_7402p:-
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cpe:2.3:h:amd:epyc_7413:-
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cpe:2.3:h:amd:epyc_7443:-
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cpe:2.3:h:amd:epyc_7443p:-
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cpe:2.3:h:amd:epyc_7451:-
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cpe:2.3:h:amd:epyc_7452:-
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cpe:2.3:h:amd:epyc_7453:-
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cpe:2.3:h:amd:epyc_74f3:-
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cpe:2.3:h:amd:epyc_7501:-
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cpe:2.3:h:amd:epyc_7502:-
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cpe:2.3:h:amd:epyc_7502p:-
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cpe:2.3:h:amd:epyc_7513:-
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cpe:2.3:h:amd:epyc_7532:-
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cpe:2.3:h:amd:epyc_7542:-
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cpe:2.3:h:amd:epyc_7543:-
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cpe:2.3:h:amd:epyc_7543p:-
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cpe:2.3:h:amd:epyc_7551:-
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cpe:2.3:h:amd:epyc_7551p:-
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cpe:2.3:h:amd:epyc_7552:-
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cpe:2.3:h:amd:epyc_75f3:-
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cpe:2.3:h:amd:epyc_7601:-
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cpe:2.3:h:amd:epyc_7642:-
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cpe:2.3:h:amd:epyc_7643:-
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cpe:2.3:h:amd:epyc_7662:-
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cpe:2.3:h:amd:epyc_7663:-
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cpe:2.3:h:amd:epyc_7702:-
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cpe:2.3:h:amd:epyc_7702p:-
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cpe:2.3:h:amd:epyc_7713:-
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cpe:2.3:h:amd:epyc_7713p:-
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cpe:2.3:h:amd:epyc_7742:-
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cpe:2.3:h:amd:epyc_7763:-
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cpe:2.3:h:amd:epyc_7f32:-
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cpe:2.3:h:amd:epyc_7f52:-
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cpe:2.3:h:amd:epyc_7f72:-
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cpe:2.3:h:amd:epyc_7h12:-
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cpe:2.3:h:amd:epyc_embedded_3101:-
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cpe:2.3:h:amd:epyc_embedded_3151:-
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cpe:2.3:h:amd:epyc_embedded_3201:-
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cpe:2.3:h:amd:epyc_embedded_3251:-
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cpe:2.3:h:amd:epyc_embedded_3255:-
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cpe:2.3:h:amd:epyc_embedded_3351:-
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cpe:2.3:h:amd:epyc_embedded_3451:-