Insufficient Checks in SEV Affecting AMD Products
CVE-2021-26403

6.5MEDIUM

Key Information:

Vendor

Amd
Status
1st Gen Epyc
2nd Gen Epyc
Vendor
CVE Published:
11 January 2023

What is CVE-2021-26403?

Insufficient checks within the Secure Encrypted Virtualization (SEV) framework from AMD may allow a malicious hypervisor to disclose sensitive launch secrets. This vulnerability could lead to potential compromises of virtual machine confidentiality, posing serious security risks for systems utilizing SEV technology.

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Deploy the Patch

Affected Version(s)

1st Gen EPYC x86 various

2nd Gen EPYC x86 various

References

https://www.amd.com/en/corporate/product-security/bulleti...
vendor-advisory

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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