What is CVE-2021-26397?

CVE-2021-26397 is a high-severity vulnerability in Amd 3rd Gen Epyc™. CVSS score: 7.1/10. Published 2023-05-09.

How severe is CVE-2021-26397?

High severity. CVSS v3 base score is 7.1 out of 10.

Vulnerability in Amd 3rd Gen Epyc™

CVE-2021-26397

Insufficient address validation, may allow an attacker with a compromised ABL and UApp to corrupt sensitive memory locations potentially resulting in a loss of integrity or availability.

EPSS: 0.002 (7.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

Affected products

Amd 3rd Gen Epyc™ — versions various
Amd Epyc_72f3
Amd Epyc_72f3_firmware
Amd Epyc_7313
Amd Epyc_7313_firmware
Amd Epyc_7313p
Amd Epyc_7313p_firmware
Amd Epyc_7343
Amd Epyc_7343_firmware
Amd Epyc_7373x

References

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

Frequently asked questions

What is CVE-2021-26397?: CVE-2021-26397 is a high-severity vulnerability in Amd 3rd Gen Epyc™. CVSS score: 7.1/10. Published 2023-05-09.
How severe is CVE-2021-26397?: High severity. CVSS v3 base score is 7.1 out of 10.