Vulnerability Description
Improper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information disclosure.
CVSS Score
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Amd | Epyc 7003 Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7003 | - |
| Amd | Epyc 7313 Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7313 | - |
| Amd | Epyc 7313P Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7313P | - |
| Amd | Epyc 7343 Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7343 | - |
| Amd | Epyc 7373X Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7373X | - |
| Amd | Epyc 73F3 Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 73F3 | - |
| Amd | Epyc 7413 Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7413 | - |
| Amd | Epyc 7443 Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7443 | - |
| Amd | Epyc 7443P Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7443P | - |
| Amd | Epyc 7453 Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7453 | - |
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-2021-26404?
CVE-2021-26404 is a vulnerability with a CVSS score of 5.5 (MEDIUM). Improper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information disclosure.
How severe is CVE-2021-26404?
CVE-2021-26404 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-26404?
Check the references section above for vendor advisories and patch information. Affected products include: Amd Epyc 7003 Firmware, Amd Epyc 7003, Amd Epyc 7313 Firmware, Amd Epyc 7313, Amd Epyc 7313P Firmware.