CVSS 3.1
7.2 highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HCVE-2021-26311
High (7.2) in amd. EPSS 1.7% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 1.7% chance of exploitation in the next 30 days; higher than 76% of CVEs (scores of 2026-10-31)
- CWE
- CWE-77
- Published
- Modified
- Record from
- the NVD, synced
Affected
- amd:epyc_7232p
- amd:epyc_7251
- amd:epyc_7252
- amd:epyc_7261
- amd:epyc_7262
- amd:epyc_7272
- amd:epyc_7281
- amd:epyc_7282
- amd:epyc_72f3
- amd:epyc_7301
- amd:epyc_7302
- amd:epyc_7302p
- amd:epyc_7313
- amd:epyc_7313p
- amd:epyc_7343
- amd:epyc_7351
- amd:epyc_7351p
- amd:epyc_7352
- amd:epyc_7371
- amd:epyc_73f3
- amd:epyc_7401
- amd:epyc_7401p
- amd:epyc_7402
- amd:epyc_7402p
- amd:epyc_7413
- amd:epyc_7443
- amd:epyc_7443p
- amd:epyc_7451
- amd:epyc_7452
- amd:epyc_7453
- amd:epyc_74f3
- amd:epyc_7501
- amd:epyc_7502
- amd:epyc_7502p
- amd:epyc_7513
- amd:epyc_7532
- amd:epyc_7542
- amd:epyc_7543
- amd:epyc_7543p
- amd:epyc_7551
- amd:epyc_7551p
- amd:epyc_7552
- amd:epyc_75f3
- amd:epyc_7601
- amd:epyc_7642
- amd:epyc_7643
- amd:epyc_7662
- amd:epyc_7663
- amd:epyc_7702
- amd:epyc_7702p