Vulnerability Description
Insufficient checks in SEV may lead to a malicious hypervisor disclosing the launch secret potentially resulting in compromise of VM confidentiality.
CVSS Score
6.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Amd | Epyc 7001 Firmware | < naplespi_1.0.0.e |
| Amd | Epyc 7001 | - |
| Amd | Epyc 7251 Firmware | < naplespi_1.0.0.e |
| Amd | Epyc 7251 | - |
| Amd | Epyc 7261 Firmware | < naplespi_1.0.0.e |
| Amd | Epyc 7261 | - |
| Amd | Epyc 7281 Firmware | < naplespi_1.0.0.e |
| Amd | Epyc 7281 | - |
| Amd | Epyc 7301 Firmware | < naplespi_1.0.0.e |
| Amd | Epyc 7301 | - |
| Amd | Epyc 7351 Firmware | < naplespi_1.0.0.e |
| Amd | Epyc 7351 | - |
| Amd | Epyc 7351P Firmware | < naplespi_1.0.0.e |
| Amd | Epyc 7351P | - |
| Amd | Epyc 7371 Firmware | < naplespi_1.0.0.e |
| Amd | Epyc 7371 | - |
| Amd | Epyc 7401 Firmware | < naplespi_1.0.0.e |
| Amd | Epyc 7401 | - |
| Amd | Epyc 7401P Firmware | < naplespi_1.0.0.e |
| Amd | Epyc 7401P | - |
Related Weaknesses (CWE)
References
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032Vendor Advisory
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032Vendor Advisory
FAQ
What is CVE-2021-26403?
CVE-2021-26403 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Insufficient checks in SEV may lead to a malicious hypervisor disclosing the launch secret potentially resulting in compromise of VM confidentiality.
How severe is CVE-2021-26403?
CVE-2021-26403 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-26403?
Check the references section above for vendor advisories and patch information. Affected products include: Amd Epyc 7001 Firmware, Amd Epyc 7001, Amd Epyc 7251 Firmware, Amd Epyc 7251, Amd Epyc 7261 Firmware.