What is CVE-2021-26407?

CVE-2021-26407 is a medium-severity vulnerability in Amd 2nd Gen Epyc, classified under Use of Insufficiently Random Values. CVSS score: 5.5/10. Published 2023-01-11.

How severe is CVE-2021-26407?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Amd 2nd Gen Epyc

CVE-2021-26407

A randomly generated Initialization Vector (IV) may lead to a collision of IVs with the same key potentially resulting in information disclosure.

EPSS: 0.002 (8.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Amd 2nd Gen Epyc — versions various
Amd Romepi
Amd Romepi_firmware

Weakness classification (CWE)

CWE-330 — Use of Insufficiently Random Values

References

psirt@amd.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2021-26407?: CVE-2021-26407 is a medium-severity vulnerability in Amd 2nd Gen Epyc, classified under Use of Insufficiently Random Values. CVSS score: 5.5/10. Published 2023-01-11.
How severe is CVE-2021-26407?: Medium severity. CVSS v3 base score is 5.5 out of 10.